Infinity on Android still works for me, though I don't know for how long as I got a message about a week ago when opening the app saying it would switch to a paid subscription July 1st so I have no idea what is going on there.
I think Infinity secured some kind of exception to keep it running until the new subscription version is ready (likely because the app has always been free and not subscription-based). There was some discussion on the Reddit Infinity community but I haven't been on there in a while.
There is some suspicion that other apps like Narwhal are paying out of pocket to keep things going at the moment...