alt Hacker NewsF-Droid really does have some great stuff, and you can know that the default posture is user respect rather than the opposite situation of the Play Store. I've started almost exclusively using F-Droid, excepting only for a few core apps that aren't available there (much to my disappointment).
If you haven't searched/browsed F-Droid in the last few years, do it. You'll likely be pleasantly surprised.
F-Droid is amazing. I basically wont install anything from the playstore unless its my bank or something.
Video games on F-Droid are how Android games should be. They have the spirt: No ads, no micro transactions, etc..
Kids educational games are the same. I have been using those games only for years and I've had 0 issues. Playstore games, you get an update and now your progress is frozen unless you pay.
Guitar tuner? same
File explorer, image viewer, etc... Same
Everything: same