Gog, drm free, just works, and devs get more money.
On the other hand, death to valve and steam. The launcher itself is dogshit bloatware and I do not have a single recent memory of it being remotely pleasant to use. The download and verification speeds are absolutely awful compared to Gog and, in my limited experience, Epic. valve was definitely a pioneer in microtransactions with tf2 and csgo. Locking mods to their storefront is fucking disgusting, as was their attempt to monetize them. There is also negative quality control when it comes to what’s allowed to be sold on steam.