In the past I used to have EA Play (2 or 3 years ago) but for some stupid reason if I had for example Titanfall 2 in my library added for EA Play and then they gave it away in PS Plus there was no way to claim it in my PS Plus library because “I already had it added in my library”, although it was for EA Play license and not PS Plus and during a year that I had EA Play they gave away several EA games that I could not claim precisely because of this and I find it quite frustrating not being able to claim games of a membership that I paid, I mean, even if I have it for EA Play is the same as having it for PS Plus, the game is not mine, it is “borrowed” while paying the service and it is more likely to pay PS Plus than EA Play, so I wanted to have them in my PS Plus library.
Now, that was in the PS4 era and now I have a PS5 and I don’t know if that has changed anything, I remember contacting Playstation support and they couldn’t help me claim a game that I already had in my account.
Edit: I already read about the merge of communities but it seems to me that in c/Playstation most of the posts are news, and if I ask something it will most likely be ignored or removed.