2D point and click game " A Night at the Watermill " was released recently with a day 1 Linux version and it's available DRM free at both GOG and Itch. The game was made using the FOSS Ren'Py engine which is licensed using MIT.
https://www.gog.com/en/game/a_night_at_the_watermill
https://neon-tales.itch.io/a-night-at-the-watermill