@b0rk To not lose your posts again, you could ask Masto.host to serve your images and media also from your domain. Right now your media URLs are in this format: "cdn.masto.host/socialjvnsca/..."

Meaning your posts have links to Masto.host, thus you can't change hosting provider in the future without breaking the links or renaming those.

You could ask them to use "cdn.jvns.ca" or similar, I know they've done it for few.