>>73466236i wouldnt call any of the systems discussed here "isekai systems" due to the fact that there's some brain behind it and not "YOU GUYS HEAR ABOUT DRAGON QUEST?¡" with maybe only holotrap dungeon being a Litrpg.
The systems discussed here,sadly, always find themselves falling in the trap of "oh yeah this is so fucking cool god i fucking lo-what...do i have to write and do this??? AAAAAH AAAAIEEEEE SAVE ME HACKMAN" and i speak from experience because my chuuni WIP is just "yeah no its mumbo jumbo. Who gives a shit, have abilities"
Isekai systems exist to simplify going from A to B by using an easy system to implement everywhere. Biggest example i can think its "lazy isekais" where the idea is clearly "i just want to write a story where i hang around a house and people come to suck my dick" but that's not interesting, so they add something like "the biggest woodcarver"... but researching wood carving is boring and i dont care, so just use isekai powers to make 400000 of something so i can write this shit.
My TLDR is that battle systems here are born from the idea of making something cool with chuubas, and since you have to write it instead of shitting it all over a template...its hard