I bought a Pixel 5 two years ago for exactly that reason (fingerprint on the back) and its small size. I love this phone but honestly the fingerprint reader works 70-80% of the time depending on sweaty hands etc. and by now I wish it was on the front because it often lays on the table and I have to pick it up. It all has its pros and cons and I think an ultrasonic under the display is the best option (right after apples face id).

UND

Spaßfakt: Vanillin ist ein chemisch identischer Aromastoff - es gibt auf molekularer Ebene keinen Unterschied zum "Original", heißt die Pflanze produziert exakt denselben Stoff den wir chemisch synthetisch herstellen.

Wo kommt eigentlich der Begriff Zangendeutsch her bzw was bedeutet das?

Nice! Is it planned to release it on f-droid or any f-droid repository? Appreciate the work, still using Infinity for Reddit! Edit: Found a comment from the dev over on reddit that he plans to put a version on f-droid! Awesome guy!