I don't know how useful this info can be, but i'll post it here anyways (I've also wrote it on the bug report app when the game crashed)

It started happening when I was mindlessly spamming Crystal Weapon on my stamSorc outside combat. Then when I began testing it in duels, it were more and more frequent (At this time, I had all my addons enabled, which included the ones people were saying it was the cause of most crashes).
After that, I've tried disabling most of my addons, and the problem persisted, so I've disabled all my addons, and just stayed idle. This way the crashes had stopped.
But then, after simply walking around and using a few emotes, I got more crashes (I was zig-zagging holding SHIFT+A and repeatedly pressing D).
It was there that I've seen something. Everytime I was giving too many commands at once to the server through my keyboard (walking, crouching, sprinting, blocking, attacking, casting buffs and offensive skills, etc.), the game would crash. So, whenever I dueled someone, or zig-zagged with my character, the game would 100% crash to desktop.

If the duel were quick enough, I was able to remain on the server without crashing, but after trying the zig-zag thing (holding SHIFT+A and pressing D repeatedly), I would crash in like 10 or 15 seconds, everytime.

Staying idle doesn't crash the game for me, even if all addons are enabled.

Summing up:

1. All addons disabled, most graphics settings disabled, FPS and ping on good numbers, and I still had crashes if I tried the things I've said above.
2. All addons enabled, maxed graphics, and idling / chatting, the game wouldn't crash.
3. I have never experienced crashes associated with addons, on character selection screen, with hiding followers option, before loading into the game, and using /encounterlog.
4. Also, my game was working fine for many days after the patch went live. The crashes started yesterday only (thats why I think it's not related to the addons on my end).

Ps: Last week I was having a really hard time with logging into the server, or accessing any ZoS websites (account, forum, main website). I had massive ping spikes, and simply was unable to log into the game, with and without Steam. And I was unable to open any websites related to ZoS.