thats why i always run close source software in bwrap. not only cracked games.

Universal Copy and Network Signal Guru. former is used to copy on text which usually unable to copy. latter is used to modify some modem setting.

im using https://github.com/Kr328/Riru-ClipboardWhitelist on android to make clipboard behaves like pre android 10 era

have you tried edit /system/vendor/etc/mixer_paths.xml file ? it may include volume and gain config

i think these video may explained it

https://www.youtube.com/watch?v=4XNvnKDSoEw
https://www.youtube.com/watch?v=tD5Dd6VDr7c
https://www.youtube.com/watch?v=qZHoIS-10GQ

you can you this as a reference https://wiki.archlinux.org/title/Localization/Simplified_Chinese#Chinese_characters_displayed_as_variant_(Japanese)_glyphs . although it is for chinese, but you can take the font config of it and reorder it (put Noto Sans CJK JP at first)

yes you can. but not for recent released tablets. you can find more on devices page of pmos wiki

android tablet have many way to run a linux user land . but most of them are still using downstream android kernel. which means you wont get any 3d acceleration in your "linux" environment. so i would suggest you some sbc based tablet or some chromebook (then install linux on it manually)

im using cloudflare doh as upstream. and setting my own dns server (dnsmasq) with ad block hosts on my router

but it just the ec part. bios is still the proprietary insyde bios

the point of 4k is that you can make ui smaller and show more things

if you are using btrfs. try btrfs send