I would certainly be sad. And then I'd start playing something else. It happens all the time in video games. People paid money for Club Penguin memberships and logged untold amounts of time there, too!
Dell does not have ecosystem lock-in the way that Apple does. The question is not whether you will care or be sad that Apple blocked your game, but whether you will care enough or be sad enough to ditch Apple going forward.
Apple killed the 3.5mm headphone jack, it was and remains a really frustrating inconvenience, and yet here I am, still using a bunch of Apple products.