At the end of the day, any Distro that you pick will be essentially the same, as far as handling WoW. I have played WoW over the years on the multiple Linux Distros that I have used. The best way would be via Proton from within Steam. I tend to like the custom Proton version - Glorious Eggroll's version.
For Linux Distros, pick one that is heavily documented like Ubuntu / Mint, both Debian based and tons of troubleshooting articles in case you need to reference them. Tend to prefer Mint between these two, personal choice. I tend to prefer Arch based ones, since they have what is called the AUR (Arch user Repo) which allows more complied apps to be downloaded and used on the system.
now imagine having a girlfriend / boyfriends plus 3 little ones?
Luckily i dont yet that going on but i feel your pain sometimes. I tend to go to bed around 11pm and get up at 5am. Naturally without any alarms. So i have 2 hours in the morning, i tend to do smaller home duties and then after work, study for 1 hour (no more no less), eat and then chill on the couch. On the weekend, get all of your cleaning, errands do as soon as possible which will allow the rest of the day to hang out with friends, or whatever
My biggest advice that I wish more people would is to go to bed on Friday / Saturday / Sunday at the same time you would throughout the week. Dont extend your waking hours and be sluggish come Monday.
Also enjoy your life. It goes quick