Why bother with an Everdrive on an Analogue Pocket? Mine has only seen a cartridge once, just because my partner happened to have an old GB game she wanted to see if her save had survived on, otherwise it runs entirely off SD.
Not a bad reason, especially if you have saves on it. I'm sure there's a way to transfer them and make it work but I wouldn't be surprised if it wasn't perfectly straightforward so I can totally see not finding it worth the effort.
I never had a Game Boy, back in the day I was the kid tethered to the power cord with his Game Gear. I almost bought the adapter, but then I realized none of my games had saves so I had no reason to want to use the real carts.
I already had a GBA Everdrive but I picked a GB/C one up because for about a year after release, the FPGA cores didn't support the display emulation features of the Pocket, which is a good chunk of the reason I bought mine. I believe they are now all fully supported though. The Pocket's sleep doesn't really work with flash carts either, so arguably the core + SD card route is now the better option, though I still own my AGS-101 model SP and GB micro, and it's cool to play on those still sometimes.
