Why stay out of BIOS? Usually it is the most reliable way to adjust anything, and in general, the only change people should do, is to enable XMP/DOCP/EXPO, enable secure boot (OS. windows) and virtualization.
I don't typivally install any software, which affects how computer works, except what comes with GPUs driver.
In my case motherboard comes with readily optilized settings for different memory chips, which saved me a lot of work with 2x32Gb DR DDR5 5200 Micron sticks. Also by increasing fan speed at lower temp reduces temperature variation and temps, while lowering over all noise level.
While you can't just set whatever setting to whatever and have to first check, what is safe and what is not, from learning point of view understanding BIOS is important. If you only know Ryzen Master, you would not know what to do if you one day get something else than AMD...
Installing Windows again is a good idea after changing motherboard or CPU.
My basic tools are HWINFO64, Cinebench R23, 3DMark and maybe a couple of games with different engines. While Afterburner might not have received updates, HWINFO64s data has been reliable.
As it comes to installing coolers, springs are there to control pressure and screws are simply tightendnas far as they go without force.
