These seem like such wish fulfillment stories. They want conflict, but don’t want the self insert protagonist to suffer much. The most they are willing to put in is a short tragedy at the beginning and it’s a breeze from then on. They also believe in a faithful, mindless girlfriend who they also want to be strong, but not as strong as the mc. That’s why a lot of these isekais introduce slaves like 3 chapters in and it feels like a shameless plug. That’s because it is, none of these people want to write a good compelling story, they just want to project themselves into a shitty fan fiction.