Prop nVidia has fantastic Linux support. I have been running GTX 1060 for about 3 years driving 5 4K screens on Debian 8, 9, and now 10, including video playback with no tearing. Rarely when a card experiences a crash after being fed a corrupt h264 chuck, it freezes for 10-20 seconds but it recovers by itself.

The open source driver... the open source driver crashes at least one a week driving two monitors. I gave up on it.