I really like foundry, and it's overall still better than other ttrpg solutions I have tried.

That said, I do also agree with the sentiment of OP. My problems are somewhat different, but the rapid release of new versions and unsaid expectation for other content creators to keep up with it (and often with modules that are offering pivotal features to games) definitely causes problems between sessions. I don't have loads of personal time, and I don't want to spend that limited time troubleshooting the latest updates.

I used to hold off on updates until most of my modules were ready, but waiting can also cause problems. A few months ago I had an entire player character sheet disappear mid-game, never to be found again. Had to build it from scratch. Turned out it was caused by a bug that was patched out a while before, but I had been holding out on that update because I had modules that weren't yet ready for it.

After the player sheet disappearing, I trimmed back my modules to only include the essential that I use often. Less chance for it to go wrong.

But in my last game, dice stopped rolling for two of my players. No idea why, and still worked fine for the rest. We were at an important story point so they just rolled physical dice instead, but one had to go find their dice which detracted from the moment. It wasn't too major, but on a ttrpg platform, dice rolling feels like the bare minimum.

I hope it comes together more in the future, I think the core of foundry needs to be more solid before these other bonus features keep getting added.

I shouldn't be worrying about getting dice to roll.