That's why the Sith reduced their numbers to only two. That's canon (or was), but I don't remember where's at, probably a Darth Bane story...
Darth Bane reduced their numbers to Two because the sith kept killing/fighting eachother due to the nature of the Dark Side and the Jedi took advantage of that. It was also reduced so that the sith could move around in secret without the Jedi being aware. Not because there were too many sith taking up "bandwidth"
I was told that the primary reason for the rule of two was indeed to address the problem of all the power struggle but that there was this secondary advantage in that the less the users of the dark side the connection because somewhat more efficient. Hadn't read the stories myself, so I will not argue about it, if I'm wrong I'm wrong...
I think the more powerful a Jedi is the more force molecules they have in their body? So more Jedi's wouldn't necessarily mean that there is noise in the force if the force is independent based on the amount of force cells per person rather than like a field. Unless the force cells interact with the force field ?
Wow really? I was half joking when I said it and didn't expect it to be true let alone Canon.
Rule of two is Canon, but it's a bit more nuanced than just "less sith, more power"
Is it actually? I figured it was more of just a Yoda/Mace Windy quote. "Always 2 there are"
Force Management: "Oh my god, a force user NOT using it to slaughter innocent people. HAVE ALL OUR STOCK, BRO!!"