Ok I think I've settled down on the tempered glass and case for my s25. Tempered glass using the whitestone dome anti-reflection non glue type, the anti reflection is pretty good, makes the s25 screen much less reflective since the glass of the s25 don't have armour glass like the ultra. Fingerprint sensing is also instantaneous.
Case I got a cheap $10 black silicon case from mister mobile when I bought my phone, expected to use it as a temp case since I thought so cheap can't be good. It's unexpectedly very good, the case provides just the right amount of grip while not being too grippy when fishing the phone out of the pocket. It's also quite svelte and not bulky at all, and has a lanyard hole. Cutouts are smooth and precise as well.