Help me choose linux's best option for public school lab (distro, desktop, etc.)

I apologize if my english isn't perfect in how you would say it daily, but I hope it'll help with Linux popularity and as a reference for future days.

For this post specifically I want opinions regarding what would be best for school lab of tech vocational high school (for both computer networking and software engineering).

1. Package update frequency:

• A. Years per update (Debian, OpenSuse Leap)
• B. Every 6 month (Ubuntu/Fedora)
• C. Rolling Release (Debian Sid or Arch but update whenever (every week/month/semester/year))

2. Desktop environment:

• A. Gnome
• B. KDE Plasma
• C. Cinnamon
• D. Lightweight DE (XFCE, LXQT, etc.)
• E. Other DE (Mate, Budgie, etc.)
• F. Stacking Window Manager (Fluxbox, IceWM, Openbox, etc)
• G. TIling or Dynamic WM

3. Community or Company Distro?

• A. Community Distro
• B. Company Distro

4. Display server protocol:

• A. Xorg
• B. Wayland

5. File System:

• A. EXT4
• B. BTRFS
• C. Other

6. Immutable?

• A. Not Immutable
• B. Immutable

7. Functionality

• A. General Purpose (Debian, Arch, OpenSuse)
• B. Specific Purpose (Debian Edu, Parrot Linux, AV linux, etc.)

Let me know your opinion, perhaps I missed some critical question or maybe some question above isn't that important to consider.