It will be a few years before it’s on GOG, so it really depends how patient you are. Fallout 4 only appeared on there a week or two ago to give you a frame of reference.
But Microsoft is doing exactly the same thing, only instead of paying for exclusivity of one title, they’re buying developers so not just their next title, but all future releases will be exclusive, up until MS decides they’re not worth it and dumps them.
Sony absolutely participates in anti-consumer practices, but let’s not pretend that MS is any better.