Because everything sucks now.

https://play.google.com/store/apps/details?id=com.shatteredpixel.shatteredpixeldungeon

https://play.google.com/store/apps/details?id=com.grimdev.grimquest

They are out there but I struggle to find good ones.

Gacha games

Best mobile games are Nintendo DS games that are completely touch based, which end up feeling like native experiences such as Kirby Mass Attack.

Super Auto Pets

Have they ever been good? The sad thing I can tell you as a mobile dev(not game though) is that people on Android don’t want to pay for apps or games, on iOS it’s a bit better but still way worse than PC or PlayStation. There’s also rampant piracy on Android, both from users but even more so from shady app clones Google ignores. As a result free to play, always online with microtransactions is basically the only way to make money

At least in Android you can install old games yet, I just installed Nimble Quest and had a blast as of recently.

The only good new mobile games are on Apple Arcade, which is behind a paywall. It sucks but what can ya do.

The good ones are mostly pc ports (dead cells, stardew vally)

Not gonna lie I'm still hitting clash of clans... Paid for maybe 5 months of gold pass but no longer been playing since I was in middle school. Took like 6 years off though