A young female interior decorator (?) is hired by a rich family to work on their house but it turns out to be a trap, that she can only escape by solving the puzzles they've prepared for her

Movies
1

Country of origin: Maybe Spain or France.

It’s not:

Any installation of the Escape Room series.
The Game (1997).
Game Night (2018).
Ready or Not (2019).

She might have been an architect or something similar.
She can’t leave because the gates are locked.
The family forces her to participate in their games.
The woman solves multiple puzzles/riddles.
Near the end, it’s revealed that the family are actually employees of a company that was hired by the protagonist’s mother, because she wanted to shake her daughter’s life up.
Her performance was observed via cameras from a hidden room in the house.
When the daughter learns about this, she french kisses a guy, then she looks into a camera and says:
“Checkmate, mom!”