Huawei and SMIC quietly rolled out a new Kirin 9000C processor.
Chinese foundry SMIC may have broken the 5nm process barrier, as evidenced by a new Huawei laptop listed with an advanced chip with 5nm manufacturing tech — a feat previously thought impossible due to U.S sanctions.
It varies for every bit of hardware so you will have to do a bit of research, but this should put you on the right track
https://github.com/htruong/ezpi4me
https://wiki.gentoo.org/wiki/User:Sakaki/Sakaki%27s_EFI_Install_Guide/Disabling_the_Intel_Management_Engine