I am going to keep this short and simple. Spectators in bedwars are starting to become a problem. They stand in front of people building bridges, this makes the block glitch and the builder to fall into the void. The other Major problem is they give away player locations, Making attack difficult if not impossible, Both of these things make Some bedwars games longer than they should be, and much harder if not impossible to win. I want to suggest Putting Bedwars spectators in Spectator mode (minecraft's gamemode 3) and ether muting them or putting a heavy cool down timer on there chat. This would prevent them from interfering with the game. as a Spectator, they couldn't glitch out blocks. and with little to no chat interaction, they could not spoil an attack
I support for the /gm 3, but not for the muting part. If someone was to hide and camp, the game would never end. Spectators make the game less frustrating for the people who are trying to look for people who won't show their faces.