I’d been using push notification on the PWA version of SN since it became available. Today I opened the app and noticed my push notifications setting had been unchecked without me doing so. Is this a bug?
Yes, known bug but I realized I didn't create a ticket yet
It has to do with how push services behave. They may update your push subscription at any time and we have to update the push subscriptions of users in that case but the code which does that doesn't seem to work and isn't obvious to test. But I think it only requires some more research. We will definitely fix this soon-ish.