The premise they sold to the audience was "Streamer has a bunch of psycho fans in another world," which is an interesting and unique premise. The problem is that the "psycho" part doesn't have any substance. The yan is superficial. Instead of a unique story about yandere fighting each other or the streamer over streamer's attention, it's turned into a fairly generic isekai about a character with cheat powers (infinite mana) stomping on non-threats with his harem.
There's a lot of really cool story potential in a story about actual psycho stalker fans in a fantasy setting, but this story doesn't bother with any of it. The current arc is about interfering with a political marriage to someone evil, which doesn't actually use the premise. If you remove the panels with the weird thoughts the girls have and changed "fans of streamer" to "met at school" you could put this arc in any harem fantasy story. The weird thoughts are throwaway gags with 0 substance or consequence. They don't actually affect the story in any meaningful way. They feel like a lazy obligation to keep the yandere part of the story in the reader's mind without having characters that perform any yandere actions.
The only part of this chapter that has anything to do with streaming is the talk no jutsu that could be changed into friendship with zero story changes. The chapter before this arc was about a misunderstood inventor that the protagonist could understand. Again, that's not something that uses the streaming premise in a unique or clever way, that's a story cliche you could find in any isekai and several of those isekai do it better.
The story promised "anonymous streamer struggles with yandere fans" but delivered a painfully generic harem isekai with a throwaway gag where the harem members occasionally think a yandere thought they never act on which doesn't affect the story. Maybe the author can turn this around in an arc or two, but right now this is a good premise completely wasted on a boring story.