You can use proxmox to do most of this. Currently my set will only pass-through the gpu to one VM. I have heard of splitting the power among VMs but I have not gone down that rabbit hole. If I want to play with llms I fire up that server, if I want to game, I shut that down and fire up my windows 10 vm.

You are an antenna, or more likely in this case a counterpoise to the existing antenna. Maybe try and add a pigtail of wire to be an actual counterpoise.

But it could be a million other things, you could be adding capacitance to the system to bring it more in tune. Have you tried changing the length of the legs? In a v configuration, they could need slightly different lengths to be in tune where you want it.