If you are not eating a lot of red meat, you will probably benefit from creatine. There are a small fraction of people who are creatine non-responders.
You might enjoy this site if you don't already use it - more or less each link references a study.
https://ergo-log.com/creatine.html
I don't eat red meat at all, neither white. A lot of eggs and fish together with beans and nuts, I need to really work hard to have these proteins in my diet :D
Thanks for the link, I didn't know that site