Here in central Europe, staff generally wears them (usually not covering the nose though), while most guests don't. This is true across all chains, irrespective of what the official policy is. From commerical perspective it's just not realistic to try enforcing it as they would have to kick most of their customers out.

I'm currently in northern Poland, the etiquette seems to be that you wear a mask when in direct contact with someone else (e.g. when checking-in), although this is also far from 100% compliance (tourists generally do it, locals not so much). Otherwise it's mask-free and no one seems to care, apart from one American guest we met in the elevator.

In bars and restaurants (including ones at hotels) it's completely random. Some people wear them when not seated, others don't. Both is accepted without any issues. Staff almost always has masks, but they wear them under their nose or they use those plastic mouth coverings.