It looks to me like the innovative bunch has now largely moved onto tirz and reta.
Taking part in this group purchase I planned to order quite a bit of the sema version for my partner since the pharmacy that mixes her doses is shutting down after a legal case. Checking the order spreadsheet showed just three of us including me picked sema while hundreds selected the other two options instead. I wonder how many folks keep using sema these days and among them how many turn to unofficial sources for it.