Are they a thief of focus or simply very efficient entertainment?

And then there's the voynich manuscript, an old hoax/fantasy book documenting plants and animals that don't exist, in a made-up language.

That some people have dedicated their lives to "noble" pursuits and others to "wasting time" is entirely a function of who is telling you the story and how much money they stand to make off that other person's work. You get one life, do what you want with it as best you can.

Generations of monks did nothing but pray, work, and copy books for their entire lives. Is that a waste because they weren't writing novels instead? Because every one of them wasn't Mendel, obcessed with growing peas?

Play some video games, work on stuff if you want, or don't. Most people in history worked very hard and have been completely forgotten, all their works erased. With how easy it is to share your work online, you could even be famous for being good at video games (speed running, lore analysis, gimmick runs, etc) which may not change the world but objectively has more impact on more living people than writing small business websites or small farming rice in South Asia.