Last time it got so bad that I started duping to be able to function there with a new character without nolifing the game. Something which I had promised myself not to do ever in this game, ever since I learned how back in 2007.
I heard a lot of people with performance issues, luckily I never had that problem myself for whatever reason. Regardless if it was with the new or old engine.
Then again, if I ever decide to play again, I have an entire roster of lvl1 chars with the entire set of the store QoLs to go, from all the keys to the gardens, to stupid amounts of VP/tokens, to banks and portable stores and even endgame armors and a complete set of twinking weapons/armors for every skill/ability at every breakpoint. So it'll be easy to get back into it.
Though I doubt I ever will again.
Can't see the video right now, but considering the old thief games are some of my favorite games ever, I don't think I'd disagree much. Still haven't found a better stealth game, 23 years later. Deus ex can come real close in terms of quality stealth if you play ghost, but while encouraged, it's not the point of the game.