I'm not sure why it sounds like a humblebrag to you. I believe many people, especially those of us on our computers all day, go days at a time without writing with a pen once, except maybe to scrawl their names on receipts.

I used to keep a pad next to my desk to work out difficult programming concepts. I probably used it once a month at most.

I write more now because I try to keep handwritten notes of to-dos, but even then I had to force myself to use a pen, and not one of the million digital note-taking apps.

It's not a question of whether one is better than the other, it's just that keyboards and phones are under the fingers of a large segment of the population for the majority of the day, so people don't even think to use pens.