I just made an APT repository (repo.aplyet.com/apt), where you can install Godot through a custom built .deb package packaged automatically by a script
The package will update on every stable release of godot (Including C# support), so no Linux user has to worry about updating godot manually
Application shortcuts are also bundled inside the package, for ease of access
Compatibility
This will most likely work on these Linux Distributions
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Ubuntu
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Debian (Verified)
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Linux Mint
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Pop!_OS
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KDE neon
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Kali Linux
Distributions that are not highlighted with bold are not verified, and they are based solely on predictions (They will still probably work), you can tell me if it works on your distribution down below in the comments
All architectures supported by Godot are also supported by this package too (includes amd64, amd32, arm64, arm32), both on mono and stable versions of Godot
Why trust this repository
Entire process is open-source
There is no reason to keep it closed source
Here are the repositories involved:
Packager:
Update Checker:
No Man-in-the-Middle attacks 
The repository is signed with GPG keys, so you can be sure about the authenticity of the packages, and have not been tampered by an external source
Installation Steps
NOTE: These steps have been tested on debian, and will probably work on debian-based distros too, please cross check with your distribution
curl -fsSL https://repo.aplyet.com/apt/gpg.key | gpg --dearmor | sudo tee /usr/share/keyrings/aplyet-archive-keyring.gpg > /dev/null
echo "deb [signed-by=/usr/share/keyrings/aplyet-archive-keyring.gpg lang=none] https://repo.aplyet.com/apt /" | sudo tee /etc/apt/sources.list.d/aplyet.list
sudo apt update
sudo apt install godot
or
sudo apt install godot-mono
for the Godot mono version
NOTE: You MUST have .NET 8.0 installed on you machine for Godot Mono to work (Get it here)
I hope this is a useful resource to the community, and provide more options to installing and updating Godot on the Linux Ecosystem
APT repository is proudly hosted with Gemfury
PS: The GitHub repository will scan the Godot Engine source code for updates every 2-3 hours
Let me know what should I work on next in this repository!