You can make “media posts” because most instances will allow media upload via a pict-rs server running on a subdomain, seamlessly creating a link post when you do.

Just a small correction, it doesn’t necessarily run on a subdomain. Mine doesn’t. See my cat pic: https://gregtech.eu/pictrs/image/b22f171d-8fa3-416e-818e-5216c5a4851e.webp