Official Breathtaking View Discussion

Official discussion thread for Breathtaking View. Please do not post any spoilers or big hints.

If anyone wants to share solutions, DM me.

I think I found a way, but I couldn’t exploit it yet. Any help or hint would be appreciated

URL encode the payload

Just started with the challenge and I don’t have a clue how to approach it.
Seems like the language parameter might be vulnerable but am not sure how to further test.

Any specific tips?