Tbf, my Galaxy S22 did this a couple months ago with a system update. All my battery optimization exceptions were reset, so my alarm clock app wasn’t allowed to run in the background. Took me a week to figure out why my alarm wasn’t going off, because they also changed the location of those settings to an even more obscure menu in app permissions.
It’s been pretty nice. I started slacking on my charging schedule a few months after I got it, so it’s degraded a little bit, but I can still make it through an 8-hour shift with Spotify going through my headset. The only thing motivating me to get something else is the locked down bootloader. I’d like to install something de-google-ified, but it’s straight up impossible on the US version of the S22.