Well, I've never seen it. I only know a bit because I tried to read reviews without specific spoilers. I know it has a guy making his own kind of ST fantasy, he (maybe?) uses the appearances his coworkers/people he knows to populate the fantasy. I also know this character is a terrible person. That said, its almost 80 minutes long and I HATE shows shitting on Star Trek and nerds in general. Since I don't want to spend 76 minutes watching an episode about an internet troll with a holodeck and I loathe every single Star Trek parody that isn't Galaxy Quest (and possibly Futurama if you count parts of it as ST parody) I'll probably give it a skip. I never though it would be entertaining to watch "What if Orville was somehow less funny and the main character was one of those nutjobs you'd instantly block on social media".
Black Mirror has been an...interesting show, from what I've seen. But it has no right to parody Star Trek, much less shit on probably the only group of people who bothers to watch a less good, tech focused version of the Twilight Zone like Black Mirror. I really am not surprised that Charlie Brooker hates nerds, sincebased on the entire premise of BM he's a huge technophobe and the tech industry has a lot of nerds. If I want to get shit on for being a nerd...well, actually I don't. That's way too much of a common occurrence as it is.