Do you guys mini-fy your SCSS/Code?

Been doing a lot of reading about optimizing your site for speed and whatnot lately. So, as the title asks, do you guys mini-fy your code? I am personally unsure if I want to do it or not because once mini-fied, it’s really hard for me to read it and see what’s happening and where. Example:

So if you want to make a lot of changes once mini-fied, it just kinda seems like a big hassle to comb through what you wanna change. Thoughts?