We were so excited to get back to Boma for dinner about 2 weeks ago. It was probably about 80%-85% of what it was pre-Covid, but we still loved getting back and loved the food. It appears some supply issues might be impacting a couple items on the buffet, but not many. Meats were great, soups are awesome.... The dips, breads, and salad area seemed a little lighter than before, but it was not a huge problem for us. Some of the tables were fairly close together, but when we asked for a different table a bit away from the crowds, they were happy to oblige for us. The night we were there, the restaurant was probably 75% occupied - not sure if that's by design or by demand right now.
If you have the chance to experience Boma for the first time, we'd highly recommend it. It's one of our favorite dining experiences at Disney.