Whatever loss from 100% PS to PC converts will be small no matter how many people on forums say otherwise. Not only is PC an untapped market, but some of the sales on PC (going by gamers posts) are them being experienced PS gamers who want to double dip for the PC version. So it's not like that gamer is bailing PS. They just want to play it on PC this time. Maybe they got an awesome PC. Maybe they cant get a PS5 yet, so PC is the only option.
Think of it like the old Apple days. Total ecosystem, PC hating kind of platform. Very loyal users. Apple bailed on them for iTunes on PC, Intel Macs, MS OS and Office can be used on Macs etc... Suddenly they realized you can make a lot more money with an untapped market over whatever ultra loyal user hates the brand going forward. Its a totally mainstream promoted computer brand which is the exact opposite of the old days.
Money talks. Apple realized there's only so much money you can make off their existing core users. So to grow the brand, they went PC.