I feel like it’s not something you see very often here compared to other items like knives and fidget items.
I have a JEYI 2230 NVMe case with a 1TB drive I keep on my keychain for backups of things that would be annoying to lose like my AntennaPod stats
I carry a 2 TB Silicon Power drive on a keychain sometimes.
In addition to an encrypted partition for secure data transport, I keep a fat32 partition that can supplement phone media when I travel.
A few file formatting choices (mp3 or mp4 suffixes) mean that media playback usually works with tvs that I trust, too.
If I need more space, I can temporarily delete a few albums. No big deal.