Microprism/Split Focus Screen for Rebel T7 (not "i")?

My local camera store said my lowly T7 can not have a better focusing screen installed but a T7i could.

Is it really possible that Canon would put a different size/mounting method for their focus screen in their base DSLR?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0