Based in other negative reviewers, me playing on Linux and i don't notice no problems. I think this anti-piracy measure is already removed on Drm-free. I don't play with Gog Galaxy, only with Lutrius and still works fine. The game itself is VERY GOOD! Go get it!
No, seriously. Don't buy this game. Is bad, very bad. Buggy, broken, ugly and a total disrespect about Lord of the Rings. I never liked the franchise, but Jesus, why released this mess? Think about and don't make any mistake. Spend your hard earned money in something else. Your wallet thanks you.