Rynea I made sure that everything in my book has a reason for existence, nothing that is heaven defying, broken or a cheat. And yeah systems do exist in my novel ( a lot infact). Have a read at mine if you have the time
Title: I Hate Systems
Link: https://m.webnovel.com/book/12200080106081005
Recently systems have been spammed like air because they are similar to fan fiction in that
1) you don't need to think up new plot
2) all of your errors can be supplemented with some new system function or it's analysis
3) the mc doesn't need to be too brainy ( it's difficult to create an intelligent mc by authors who by themself doesn't have such intelligence in RL )
4) easier to paint the storyline picture
And hell no, I never used such common tropes ( my mc doesn't even possess a system )