have Rock64 and RaspberryPi3 test with Libreelec 11 for Netflix Plugin which uses VP9 for 1080P stream<
both device struggle with playback, lagging, but Rock64 bit better playback, however, it seeems that there is more issue on rock64 with Netflix add-on, very many issues with different titles, could be issue with my configuration,
or effectively the Netflix add-on by castagna function better on Raspberry<
hoping to upgrade to RockPro64 in the future, but if there could be similar issue, with playback, maybe CM4 module for Raspberry could be better option (and afterwards swap for CM5 module?) for VP9 + Netflixaddon with LibreElec.
Besides Netflix, Rock64 superior to RP3, with the exception of some stream if you have hardware keys from Raspberry Foundatoin *like VC1 if not mistaken.
EDIT: the Rock64 plays sighnificantly better, my apologies, the VP9, when it plays (the Netflix stream).