[loufe]

You might be mistaken, the Monogame Github README cites Celeste as an example made with it.

[PacificSpecific]

Ah weird. Did a bit of searching and it looks like maybe it targeted multiple frameworks with the xna API. Including xna itself

https://www.pcgamingwiki.com/wiki/Celeste https://celeste.ink/wiki/Version_history

[debugnik]

Several games used to target Monogame for consoles but XNA for PC, and later FNA for PC.

Monogame on PC used to be somewhat buggy in my hobbyist experience.

[PacificSpecific]

Oh interesting. I never hit any walls personally but I guess I didn't push that hard.

[pjmlp]

XNA was originally designed for XBox Live Arcade indie titles.