The weirdest part is that you only realize the nonsense after waking up

The single-hosed ones literally suck…
…air out of the room. This inevitably leads to ingress of warm air from the outside through various crevices. But you know that already from this comment section.

Never thought this could happen in the Czech Republic

The last character is 🩷 U+1FA77 PINK HEART

leading to these wooly screenshots

screenshots

Have we come full circle?

And, like @timori@social.wuatek.is, from Poland.

Probably not, the images are very garbled because they are meant to be viewed in a polished cylinder. See what I found: https://repozytorium.biblos.pk.edu.pl/redo/resources/27069/file/suwFiles/ZdziarskiA_RzutAnamorficzno.pdf#page=27

This is probably not it, it’s too old (1997) and by a male student. Anyway, here are the keywords for your research:
anamorfoza w malarstwie praca doktorska filetype:pdf

Edit: The “Lover’s Embrace” could be a misremembering of Para kochanków (“Pair of Lovers”) by Jan Ziarnko (1608), and this article, which might be it (not a thesis but by a female Polish scholar in 2014), includes a decoded version: https://bibliotekanauki.pl/articles/706976.pdf#page=3 (NSFW)

Link to the original comment by @timorl@social.wuatek.is

If human food is comparable, a healthy diet would probably be more expensive