Over a decade ago there was a case where Wine was incorrectly triggering bans in Diablo 3 (not sure about WoW). Problem was eventually discovered which caused the ban to trigger and Blizzard reinstated the affected accounts. Since then I have not seen any credible claim that Wine or Linux itself is triggering bans. Obviously if you start installing stuff designed to circumvent any anti-cheats then all bets are off. dxvk-nvapi is bit more difficult; quick search found some reports that dxvk-nvapi users were banned in 2018 but eventually unbanned.