It’s not about losing a license. ARM’s angle was that Nuvia’s license was for the server market. Qualcomm had their own license for the mobile chips. ARM’s issue was that the chip was developed under one license and sold/manufactured under another. (At least the first version)

For all the flak they (rightfully!) get, a 1st party open source nvidia driver is in the works.

Altough it’s only the userspace part and it’s not compliant (yet?) to be upstreamed into the kernel. It is still something.