Go2RTC - install where?

I am running Frigate + Go2RTC in a Docker container on an Intel NUC (separate from my Home Assistant server).

Would there be any advantage to running native Go2RTC on its own computer or container, or is the Go2RTC in Frigate the same?

No benefit

It is same
If you feel version is behind you may simply add binary to folder and it will use that version instead

Look in frigate forum for more details or more questions