Technoblade has said in one of his streams that the sleepy bois are not together canonically.

So in its place, techno is an old family friend! Possibly from Smp Earth?

Because that was when the antartic empire was still up and running.

Then they split ways for a bit after Smp Earth shut down only to find eachother back at dream smp.

Also techno knew and had seen philzas sons at smp earth because tommy ran business bay and wilbur ran whatever faction he was in (I kind forgot what faction he was apart of so bear with me here!).