Why is moving files to Android to bad?

I've been buying music on Bandcamp for a while now, but I haven't put much effort into moving the files to my phone. I usually either stream directly from Bandcamp or YouTube Music. The reason is that moving that many files to my phone suuucccckkksss.

The first solution most people would think of is to connect the phone directly to my computer and transfer that way. Well, Android uses a protocol called MTP for USB connections, and MTP can apparently only move one file at a time.

Alright, why not just move files over WiFi? Well, then you run into an issue of how fast your WiFi connection is. For me, it's crazy slow too. 10GB would have apparently taken about an hour. (I didn't fully test it and I don't plan to.)

~~So my current solution is to move the files to a USB-C connected M.2 drive enclosure w/ a drive inside, then connect that to my phone. It seems faster, but it isn't very intuitive.~~

~~Nevermind. I just ejected the SD card and connected it directly to my computer.~~

Double nevermind. I had to use the M.2 drive because the SD card kept failing after a few files.