The problem I have with many isekais is that the protagonists almost immediately brush off the fact that they will no longer see their friends or family (then again, many of the MCs either don't have this or this is something they view as a good thing for multitudes of reasons). Hell, most of them don't even bat an eye about the fact that they are living in conditions with their creature comforts. I've never seen an isekai where the MC was like, "God damn, I miss toilet paper so much." Few of them even point out that not having indoor plumbing or electricity or internet are depressing. You'd think a NEET that secluded himself would be more upset about not having the internet, but oh well.
And something that is even rarer than reverse isekais are isekais were someone goes to a more advanced technological destination rather than a more primitive one. The only ones I can think of are "Boku to Kanojo to Jitsudan Heiki (Antique)" (which is actually pretty damn good and also deals with the MC waking up and finding out Earth is a mere legend and everyone he knew is dead), "I Got Reincarnated And Mistaken As A Genius?" (which is generic and boring), "I Am A Killer" ("我是杀手") - (okay, technically a reverse isekai) also really damn good and is the story of an ancient Chinese assassin suddenly finding himself in the body of a completely untrained and normal teenage girl in modern times, and "Unparalleled Path ~ Reincarnated as the AI for a Space Battleship ~" (which if you read that one isekai about that dude that was reincarnated as a sword, that's basically this but he's a ship AI, not bad and does have the MC freaking out, in denial and shocked about having supposedly died and everyone is long dead on Earth by now).