You can use Fine Lock available from Play Store, you can find Galaxy App Booster in the app itself then it will direct to Finelock website to download the apk of the module like Galaxy app booster, HomeUp and more
I already my updated my phone into its latest patch which is android 12. But still its performance is very poor. I can' play landscape game because it becomes unresponsive to touch .
Yeah, same as mine, it has multi-touch issues. also, April is still the patch despite it's Android 12, we have to wait for 3 to 4 months for the next patch