Trying to learn how to use reddit desktop, how can I customize the main page to show the same subreddits rif showed?

Not sure if this is the right place to ask but I failed to get help elsewhere.

I've been using reddit is fun for almost a decade and now that is shut down, I'm trying to learn to use reddit desktop, witch it's not that bad.

So I remember my reddit is fun main/front page showed me hot and top posts for several subreddits, I remember: europe, todayilearned, todayifuckedup, oldschoolcool, gaming, funny, news, worldnews, pics, aww

I don't know if I customized it the first time I used rif, I can't remember. What I know is that going to reddit dot come front page and browsing "top" or "popular" posts shows me a lot of subreddits witch I'm not that interested about, like whitepeopletwitter and unexpected.

Does somebody know how can I customize the front page to show all those subreddits reddit is fun used to show me?

I've "Allow us to introduce recommended posts in your home feed" turned off already, turning it on only affects Best section IIRC, and it shows me subreddits where I posted, but not what rif showed me. When I go to hot or top posts it shows me a lot of subreddits I don't want to see...