We have been working on porting everything over to .NET 6 by making all the code compatible so we can build both from the same code base, and we just started putting the .NET 6 version live on one of the webservers for a few hours at a time to test it out.
CPU usage on that .NET 6 machine is 1/2 of the Framework machines! Impressive improvement, and .NET 7 should be even better.