> Google Photos still, after nearly two decades, won't tell you if they're storing an original copy or compressed facsimile of your photos.
One recent anecdote: When I used my Pixel 2 with its free original quality backup, I used motion photos for a few things. 3 years later, now, on another phone (or even the web viewer) some of these motion photos are not loading. Some of them then load on the web but have video compression artifacts (i.e.: B-frame artifacts).
I'm glad the original photos are intact from what I can tell, but this is extremely off-putting, given I was 100% in the Google ecosystem -- from hardware to account setup -- and still got burned somehow.