Thank you for the reply. The vscode extension works properly. The mcu-link driver is based on WinUSB which Microsoft ported neatly. I didn't have admin rights on the test system, but i was able to copy linkserver to the system and debug projects. I don't know about other drivers within the LinkServer installation, but they'd need a signed arm version.
Unfortunately all the tools installed by the "mcuxpresso installer" are x64, so everything runs through the Prism translation layer. git,python,ninja,cmake etc. should have arm versions released already so could be packaged. Only the arm-none-eabi toolchain doesn't have a arm64 version released yet, but could be built. Specifically for mcu-link dev boards it's mostly about performance on the ARM64 windows version.