My Onkyo TX-RZ-1100 Reciever doesn't Support Color Space YCBCR In 4:4:4 in HDR!

Hi everyone, it looks like I will probably have to upgrade my AVR in order to get all the New HDMI2.1 Features and Specs.
My Onkyo TX-RZ-1100 Reciever doesn't Support HDR in 4:4:4 it only supports it in 4:2:2

[@Harishkumar-mt6zl]

How is the sound quality

[@hometheaterman1424]

Hi My sound Quality sounds absolutely Breathtaking. Once it's Probably Calibrated. I absolutely love my Onkyo TX-RZ-1100 Reciever. But being that it is a 2016 it Far behind on A lot of Features. Like for instance HDR10+ and HDMI2.1 And EARC and HLG and also the Color Space as well.

[@Harishkumar-mt6zl]

Does it have any issues regarding connectivity and apple tv 4k

[@hometheaterman1424]

No it does not