I’ve not heard of having a choice before why would anyone opt for a reverse total shoulder if a regular total shoulder would work. I think I would just get second opinion. My surgeon said Rts is the most difficult to recover from with TS then a TKR next hardest to recover from with hip replacement being the easiest recovery. I also might add that a good physical therapist is as important as having a good surgeon. PT before therapy is a great tool to hep recover faster. My TKR was some much easier to recover from than my RTS below is X-ray of RTS
BEST OF LUCK TO YOU