I run into people doing dumb shit like truly ignoring leylines maybe once every 10 runs, which is completely acceptable to me..

On most cases either they already run the correct set up or adjust.

Also, you can also do whatever you want if the other people know what they are doing.

I constantly run Keqing in the electro domain, because I focus on physical damage.

(Every now and then someone questions me about it, I explain, and it's all good. I end up doing the most damage a lot of times...)

I have also run Klee on the domain for the Witch set when we have two healers or a healer and a hybrid. If you have a Qiqi and Jean on your party you can throw bombs with Klee all day long and the overload damage won't kill ya.