Honestly to me PS+ Extra (or even Premium) is so much better than GPU.
Sure you don't have Sony exclusives on day one, unlike on Xbox, but the results are here.
1) You have an awesome library of games to play, at least double (triple) in quantity if compared to the GPU and the quality is awesome (look at this month, look at last month).
2) You get actually great exclusives, you pay for them but you pay for something legit. God of War Ragnarok, Demon's Souls, Returnal, FFVIIRI, FFXVI, Spider-Man MM... Compared to Halo Infinite, Forza Horizon 5, Redfall...
After all only your tastes matter but for mine the choice is easily made.
I heard a lot of people happy with the fact that "well most of games I play on GPU I don't play them more than 2 hours but I'm able to try so many games it's great" sure it is great but this is now the way I play, I prefer to play a fewer games but actually completing them.
I've high expectations in Starfield <3, hope not to be disappointed.