Ohhh this is super interesting!! The term media diet is really fun! I also love how it seems like you've asked other people this question before! Makes me curious to think what people in my life would respond...
I think I've splintered up my media consumption a bunch, especially after making a conscious effort to cancel all streaming (netflix, spotify, etc) and deactivating my Youtube recommended page + deleting (most of my) social media profiles, so it's kind of difficult to say on a day-to-day basis...
Anime -> about 40 mins a day, sometimes more, sometimes less
Manga -> typically on trains, maybe 1/2 hour a day
Reading -> Maybe like five-six hours a week, either books (mostly typography/graphic design or coding related or just stuff I find on Project Gutenberg) or longread articles I find on a dreamwidth reading group or in online collections like on GitHub or something like the CyberFeminism Index. Recipe Blogs are also a favorite of mine!!
Social Media -> I spend 15 minutes a day on average on Tumblr (thank you iOS screen time stats)
Video Games -> Video games are difficult because I'll play in bursts when something specific really interests me but otherwise I only revisit Animal Crossing and Hatsune Miku Project Diva F2nd on a regular basis. I'll give it like 30 mins a day?
I do listen to music, but it's super inconsistent when and how much.. I will not count it, but I think it comes down to maybe around 2-5 hrs a week? I also used to watch a lot more Youtube, but now I only follow around 5 creators with my RSS reader and look up tutorials on there when I need to.
So overall I end up with almost 3 hours of media consumption per day (damn):
I think I got a little too into it and made my response very detailed which might be against the point but this was fun to look at and break down nonetheless!