
Better Game Mode Switcher
modMakes the game mode switcher (F3+F4) never preselect Spectator, and enables it even without operator permissions.

Makes the game mode switcher (F3+F4) never preselect Spectator, and enables it even without operator permissions.
This mod makes the game mode switcher (F3+F4) never preselect Spectator. It also enables F3+N and the game mode switcher even without operator permissions.
No. The way the game determines if the game mode switcher should be enabled in vanilla is by checking if you have the right permission level (at least 2). But some servers might give you access to the gamemode command without also giving you the corresponding permission level. This causes the game mode switcher and F3+N to be disabled. Instead, this mod explicitly checks if the gamemode command is available.
The game mode switcher will never preselect Spectator. Instead, it will preselect your last non-Spectator game mode.
Yes, by using F3+N instead of the game mode switcher.
Only if you commonly use the game mode switcher to switch between Spectator and another game mode. You will have to use F3+N for that.
To summarize:
That way, if you are, e.g., making a map, and you need to switch between Creative, Adventure and Spectator, you can switch between the first two using the game mode switcher, and spectate the world using F3+N.
For better SEO, I'm writting "gamemode switcher" with "gamemode" in a single word here, even though this is not the 'official' spelling.