It's pretty portable: with some caveats, it works pretty much everywhere Go does. Performance is bad outside amd64/arm64, but for most popular OS/platforms it's fine. See this for an overall picture (these are the platforms I test): https://github.com/ncruces/go-sqlite3/wiki/Support-matrix
I bet you could do the similar with pglite, but this (and helping out with wazero) already consumes all my spare time.