Hi Rock Dawg. Things could change by the time of your visit, but don't count on it just yet. Expect the strictest rules, be glad if rules have loosened. Masks, yes everywhere.
Currently: masks are required everywhere in casinos including at every game. Slots, VP, tables, all require masks. There is drink service to VP machines (and all games). You are expected to keep the mask on, pull it down or to the side enough to take sips but not take it off. Most tables limit the number of players to 3, separated by plexiglas. Not sure how many are allowed at POKER tables. Dealers wear masks as well.
Restaurants: You may need reservations in the popular hotel restaurants since capacity is still limited. In restaurants you keep your mask on until your first drink or food is brought to your table, at which time you may take your mask off while you eat and drink your meal. When you finish eating/drinking, you are expected to put the mask back on if you sit and converse, etc.
Most limit the number of people on an elevator, usually 4-6 depending on elevator size, and keep your mask on while in the elevator.
None of this is really disruptive to having fun, you get used to it pretty quickly. What else are you wondering about?
Candy