I think I am facing a similar issue as you. I have tried installing the drivers with lambda stack as well, but the 535 version. I am using A5000 which have an issue on the 550 version, hence the 535 drivers.
I ran apt search nvidia-driver-535 and I got something interesting:
nvidia-driver-525/unknown 535.183.01-0lambda0.22.04.1 amd64
Transitional package for nvidia-driver-535
nvidia-driver-535/unknown 550.107.02-0lambda0.22.04.2 amd64
Transitional package for nvidia-driver-550
Do you see it? Let me run apt search nvidia-driver-525:
nvidia-driver-520/unknown 525.125.06-0lambda0.22.04.1 amd64
Transitional package for nvidia-driver-525
nvidia-driver-525/unknown 535.183.01-0lambda0.22.04.1 amd64
Transitional package for nvidia-driver-535
There is an off by one error. Somehow the 525 drivers are tagged as 520, 535 as 525, 550 as 535. However, even if you install the version-1, you end up with 550 drivers.