I’m with @Uwe_Fechner - If you feel comfortable enough, give the beta firmware a go. It’s a power related patch specifically. Advertised for chargers, but reading the thread I haven’t seen any? complaints of stability issues.
You might also try to update the SSD firmware with Samsung magician, or by downloading the iso on the samsung nvme firmware website and writing to a bootable USB to patch the NVME that way instead (if it’s not already on the newest firmware). I have the 2TB 990 Pro and I’m aware they had some serious reliability issues with some of the newer batches. I didn’t notice anything myself, but patched anyway as I read the issue could significantly decrease drive lifespan if not patched. Then again, 5 yr warranty 