I have been using openrc without any intervention on different PCs since 2019.
I installed MBR or UEFI depending on the age of the PC from Calamares.
pacman -Si linux-lts
Dépôt : system
Nom : linux-lts
Version : 6.1.66-1
Description : The LTS Linux kernel and modules
Architecture : x86_64
URL : https://www.kernel.org
uname -a
Linux jp-artix-Acer 6.1.66-1-lts #1 SMP PREEMPT_DYNAMIC Fri, 08 Dec 2023 15:54:55 +0000 x86_64 GNU/Linux
I hate and avoid nvidia!
I guess so, because I (very rarely) use downgrade.
My two cents.