TL;DR: You can use a very cheap ZIF to Micro SD adapter on a 5th (and probably others) gen iPod, and with some thin paper/tape and some good timing, you too can have a budget solid state storage upgrade.
I only ever buy pretty out of date phones. My latest purchase, the Google Pixel 6, has introduced me to the wonderful world of not having 3.5mm headphone jacks on anything, and I have to say:
I hate it.
I realize I'm late to the party here, but I don't know how you fucking people have been suffering like this for so long.