Yes they are.
Currently no.
Yes we do https://discord.ragelands.net
Well that's completely fine there is a team called neutral where you are in no teams. You get /back /home and /claim if you are a neutral
For teams the only plugin is tpa, but for neutrals as listed before there is /back /home and /claim
Latest version of Minecraft.
You can't but you can be a neutral! Open a ticket if you want to switch to a neutral