I don't know what can be top DPS race (maybe Khajiit ? idk). I would assume it probably depends on content you do.
All I know is Argonian is for 100% worst for DPS role...

Seems like for Magicka damage Dunmer, Altmer and Khajiit are all about equal. Which one is best will depend on gear, weapon choice, buff uptimes, etc. and they are all within 1% DPS (Altmer and Dunmer are only 0.1% apart). Khajiit has the added benefit of a little sustain (roughly 70 mag/s) and more health, so it’s looking like a good choice even if it’s not always #1 damage. Dunmer Fire Resistance is also pretty solid after the buff to 4620. Not really any unique reason to choose Altmer now, but their damage is still at or near the top (maybe time for them to get a small recovery bonus?).

Orc is apparently beating Breton on Magicka Damage builds, which is funny and demonstrates how bad Breton has become after a series of indirect nerfs (cost reduction becoming multiplicative, removal of 20% max magicka bonus, no way to proc the doubled Spell Resist in PVE). In a lot of scenarios sustain will matter, so I don’t expect Orc would always perform better.

What’s best for stam dps now?

Seeing some inaccuracies here, although I don't claim to have been spoon-fed the truth either. This is how I understand it:

The reason Khajiit are better than they used to be, despite the nerf to crit chance over all, is that everyone now has higher base values. 1000 Spell and weapon damage raise the base damage of all skills, which also raises the base crit damage, making crit damage modifiers more powerful than before. Now this balances out with crit chance being lower now, so dps is roughly the same, but Khajiit benefit from this more than the other races and so they are now top tier together with Dunmer. Which one is better needs to be tested by someone who can parse better than me and knows their statistics better than I do.

Orc got a nerf to their max stamina, which contributes to damage output, but this nerf also isn't as impactful as it would have been last patch as the 20% increase to stats from having 300 CP is now gone, making max stamina as a bonus less relevant. This also means that Altmer don't suffer as much from having no max stamina and with their new 258 weapon damage they overtake Redguards, Nords, Imperials and possibly Bosmer as a stam dps race. With the base health getting raised for everyone, their max health bonus is also less relevant as you will still have sufficient max health regardless.

Bosmer now have a permanent bonus to penetration, which is very useful, especially for stamina dps in 4man content, unoptimized groups. Some testing needs to be done if Bosmer can now run green max stam food and still sustain well as it would mean a bit of a dps increase for them and Redguards. A health bonus from food isn't necessary anymore due to the higher base health, so instead of bistat food they can potentially go for monostat food now while everyone else is still using sustain food.
Redguard are in a similar position to Bosmer as they are sustain focused. Their uptime on their passive has been increased as it can now proc from damage over time effects. This isn't always useful, but it does help a lot in certain scenarios. They can also potentially run monostat food now, but that won't make them as effective as Bosmer due to their lack of penetration.

Bretons have been buffed, but paradoxically they are weaker now as damage dealers. Sustain has become easier for everyone so a sustain race isn't as desireable anymore. They still aren't as bad as Redguard is for stamina because magicka skills still cost more, but Bretons could already run bistat food on some setups before so the change to monostat food won't make such a big difference here, especially now that the max stats contribute less to the total damage due to the removal of the 20% attribute bonus from CP.

Imperial stayed more or less the same, but they can ult more than they used to, so a small dps increase, but a much bigger impact on Imperial tanks who love this change.

For dps Argonians and Nord are still the worst options.
Nords have been nerfed but it doesn't matter because resistances weren't the reason you would pick them as dps or tanks anyway.
Argonians got a sustain nerf which hits their already weak dps and makes Khajiit sustain better than them. Their max stats barely matter for dps, but tanks appreciate having a stamina bonus equal to their magicka bonus so they don't need to invest extra into stamina to get their resource pool higher for synergies, allowing them to get slightly more max health now. The biggest change to Argonians wasn't listed in the patch notes though as they benefit from the new base stats the same way Khajiit do. Their bonus to healing done used to be quite a bit weaker than what Altmer and Dunmer (and now Orcs too) get from their 258 spell damage, but due to the 1000 spell damage everyone is getting now, it is far easier for the Argonian healing bonus to out-perform the spell damage boni of the other races giving Argonians the strongest heals of all the races (aside from maybe Khajiit which needs to be tested). They aren't replacing Bretons as top tier healers but rather they join them, sharing the top spot as they each fullfill different needs of the group. Bretons buff better due to their sustain, Argonians keep people alive better and can heal tombs against Lokkestiizs more easily.