I will say that some people are worried about existing games leaving the playstation platform. I see over on the Bethesda fallout 76 forum, people basically saying goodbye it was fun while it lasted. Based on what MS has stated, existing games are not going anywhere and will continue to be supported.
I think games particularly like Fallout 76 really do need multi-platform support, its a popular game and has survived the really rough buggy start. Its still quite active and from what I know console play is by far the more popular way to play and if they dropped the playstation that would probably hurt the overall game.