I've done a couple cruises now. The "flow" of the cruise is a lot more normal than I originally expected.
First let me say I tend to comply with all instructions regardless if flying in an airplane, visiting a local business on land or taking a cruise. I'll also state I don't like masks. I hate them really. However I love cruising more than my dislike for masks so I pull up my big boy pants and deal with it.
I have many times now grabbed a drink and gone somewhere. There are no restrictions. No one will say "you must finish the drink here!" However I don't use that as a crutch to support not using my mask inside. Consequently I find myself voluntarily masking up between sips as I walk. It's really not that bad.
Honestly the whole mask thing was overblown in my head. It's not nearly as bad as I dreaded.
Let me put it this way... given a choice of wearing a mask with reduced capacity or not sailing until full capacity is back? I'll put a mask on. Reduced capacity is amazing. If 3 years from now someone asked me if I could make the ship half empty by wearing a mask, I'd wear a mask.