Yep. Information is still a bit messy to navigate. I think the most "preprocessed" PGO source for now is this unfinished yet article: https://github.com/zamazan4ik/awesome-pgo/blob/main/article/...

Is a 10% performance win worth it or not of course depends on your case. For some situations, even 2x-3x performance is not worth it at all, in other cases, even a few percent (or even half of a percent) win is a huge thing (especially on Google-like scales). If different ways work for you fine - it's great since you don't need to spend your time with PGO!