Yeah, 155H + RTX 500 Ada.
I use it primarily docked, so I don't really have data for efficiency/battery life. I did stress it with a Linux kernel compilation (`make -j22`), it was a while back, but I saw that the CPU frequency was up at 4GHz at the start, but dropped to 2GHz for the majority of the compilation, despite temps being in the 60-70°C range. I didn't try to troubleshoot it further since it's a work laptop and I don't compile huge projects on a regular basis. In terms of general system performance, I'm using it with Fedora KDE and it has been great.