[TRACKER] Editor packaging issues

[Calinou]

This issue tracks possible editor packaging improvements and bugs.

• Godot as flatpak runtime (Godot as flatpak runtime #5597)
• Provide Windows installers for the Godot editor (Provide Windows installers for the Godot editor #8057)
• Provide macOS .dmg images for the Godot editor (Provide macOS .dmg images for the Godot editor #8058)

[akien-mga]

Feature and improvement proposals for the Godot Engine are now being discussed and reviewed in a dedicated Godot Improvement Proposals (GIP) (godotengine/godot-proposals) issue tracker. The GIP tracker has a detailed issue template designed so that proposals include all the relevant information to start a productive discussion and help the community assess the validity of the proposal for the engine.

The main (godotengine/godot) tracker is now solely dedicated to bug reports and Pull Requests, enabling contributors to have a better focus on bug fixing work. Therefore, we are now closing all older feature proposals on the main issue tracker.

If you are interested in this feature proposal, please open a new proposal on the GIP tracker following the given issue template (after checking that it doesn't exist already). Be sure to reference this closed issue if it includes any relevant discussion (which you are also encouraged to summarize in the new proposal). Thanks in advance!