If you are a laptop user, you may want to avoid driver version 550 because there is a megathread on the NVIDIA forum where users are reporting that this version is making their distributions randomly crash.
550 is the stable driver.. This only started happening in a new kernel version and iirc from some thread it is a bug in the kernel. If you don't have the issue already just not updating kernel until this gets fixed would be enough
One of the biggest problems regarding Nvidia drivers is the fact that a small minority install them using Nvidia's .run script, which overwrites important libraries, resulting in a wide range of issues. I've always installed Nvidia drivers using my distro's package manager and I've never had an issue.
Hmm I’m on a HP Omen 15 running Pop!_OS and I’ve found 550 pretty stable. Seems a bit alarmist to say avoid 550 on all laptops, even if there are reported issues.