Both Netflix and Amazon Prime Video have their issues with different devices. Especially on the PC, where Netflix only does 4K over "an HDCP 2.2 compliant conn

Both Netflix and Amazon Prime Video have their issues with different devices. Especially on the PC, where Netflix only does 4K over "an HDCP 2.2 compliant connection to a 4K capable display, Intel's 7th generation Core CPU [Kaby Lake], and the latest Windows updates." Although they have now apparently added support for the Netflix App, so you're not still stuck using Edge. APV doesn't do 4K on the PC at all. Although both now support Linux in some form or other, which is nice.