My best friend is the great optimizer.

In magic the gathering I had dozens of decks trying different things. He had a single deck that he kept tweaking to within the millimetre of perfection.

In overwatch, I would play different characters to experience different parts of the game and try different strategies. He played single character for years, with 10 times the hours in that char than I had in all of them combined.

Heck even in real life, he was a Java developer for decades whereas I was a type of fleeting sysadmin specifically so I could play with different toys in the stack :).

Now, this is a bit side Venn diagram, he'd never be rude on an online game (he does have offline opinions on the meta :). But it let me understand people who have fun in a very different way than I do :). He doesn't see boredom in playing same way over and over (and over and over), I think he sees it as professional athlete being focused and honing their specific craft.