It might be fun for you but tacky to others. I am not a drag afficionado but have been for hen nights & found the act lively & funny but in a bitchy cringey way....but def not what I would want for my wedding. Depending on the act, some people may think it is just crass & not appropriate for the occasion.
If you are concerned now & asking for opinions then you are unsure & this will make your nervous on the day itself.
If you just don't care what other people think or if they enjoy it or not, then do what you want.
But I don't think wedding entertainment should be a show or act for people to watch....you want them to get people out on the floor & having fun but not being controversial or the main event of your wedding.
The main event is you in your beautiful dress looking gorgeous saying 'I do' for forever...& your OH of course!
Do your research & get a good live band. The best weddings I've been at have had bands...with DJ coming in later if the band aren't playing late enough.
If you neighbour who does drag is a friend & guest, maybe he will get on stage & do a number...if it is that kind of wedding where guests participate...but then you also risk the drunk uncle warbling into the mic that bit too long...