I don't know if the reverse is a new thing or if it's always been like that.
Here's a comment in a lemmy issue describing mastodon images not appearing in lemmy from last year. Since the issue was closed three days after 0.19.3 released I had expected it to work in the next version 0.19.4, but it appears that was not the case.
Edit: While I'm here, I noticed piefed also doesn't support it, so was considering opening an issue to support attachments, but I imagine there wouldn't be much desire to do so until mastodon integration is more of a real thing? though I think other software does it, like Plemora/Akkoma/Iceshrimp, I didn't check but did see the code for it being discussed for plemora at least
Any reason MATE over Xcfe? Just curious if the performance is close or MATE is better at things, not trying to question your decisions. I have a >9 year old PC at this point and installed Cinnamon on it but was finding it a bit laggy. I tried out the other editions but am sticking with LMDE for now, but sort of feel like I don't really need nice animations, I just need more CPU for faster compile times, haha
Sorry for missing this, seems mention notifications aren't working for me at the moment (hyphens have always been problems but because /kbin allowed them we're stuck with them, even though almost all AP platforms like mastodon and lemmy don't allow them) (we had fixed it four months ago but... I guess something happened since then). Not sure I know much about media uploads but can at least look into it / talk to one of the other team members that usually knows a lot about this stuff.