You probably moved on long ago. Sharing because i had the same issue for a while and i think others might read this. I have the same laptop as you. I also moved to Manjaro because of the newer hardware support. Also i 'm a developer so there is some appeal. This laptop works well with this distribution. I wanted to take. a step back and propose a different strategy for others. I installed the asusctl tool and used that to set charge limit and set power profile. You can pick several differnet window managers; you can enable and disable the GPu. recomendation You might be better off to just jump in with the basic instructions on Manjaro’s site (download /run installer) and go to town. From there at least in the newer kernels you don’t really need to do a ton other than fix the keyboard. I had to fiddle to get the power managemnt profile to stay on silent. But in the latest 5.10 set it’s using amds power tuning features. silent profile will give you 10 hours default in 5.10 is more like six so not optimal.
The bad. I used this laptop for a while now on manjaro it’s getting better the less manual you have to do. Originally had to compile three kernel modules. For whatever reasons they’d keep breaking with each upgrade, which is odd because that not exactly the point of kernel modules they should properly recompile during upgrades. i suspect it is that i didn’t do it quite right though my mistakes are repeatable. In theory though this laptop should work like a champ on Manjaro and it is a good choice.
If you just do default install pick window manager t it will work.
Next point. with Manjaro on this laptop i’ve seen things break on updates. My suspicions is since most of the hardware in this laptop is built into 5.10 and that’s an LTS pinning to that for a few months is going to resolve this. Another tip to get around these issues i set the load level to 4. IN general with linux i have sort of got to the point of prefering a text login because window managers are usually where i hit my issues and if i can get a reliable boot, i can usually fix anything. I also usually keep a separate kernel handy to fix stuff to avoid having to rely solely on usb sticks. Also, for Desktop this is never an issue I’ve hit it’s just new laptop madness. The laptop is almost a year old now, expect things to settle down really fast now on 5.10 it’s like 95% there. G14–it’s really popular, it’s fantastic, and with Chip shortages we are really lucking out because a ton of people are buying it which only helps with Support! I think Manjaro is a really good distribution for laptops. If your really into linux i 'd even consider going with the 2020 module to avoid the hassle of new hardware all over again if your using it for productivity.