2D point and click game "The founders of [redacted]" was released recently. It has a native Linux version and is available DRM free at Itch. It was made with some FOSS tools such as LÖVE and was developed on Linux machines.
https://apicici.itch.io/the-founders-of-redacted
The developer has other games all available for free of charge although one can donate if they are so inclined to support them:
The developer has a presence on Mastodon: