Time Code on EOS R5C drifts too much to meet SMPTE spec. I've tried to stab it like we normally do with C300s, but it's seconds off by lunch instead of a single frame. You can always make the TC accurate with an external Lock-It box, but having to rely on an external box might not meet Netflix spec.
The whole 8K hype seems so incredibly overblown to me. Netflix is a streaming service, and with todays TV's you can barely notice a difference between 4K and 1080, let alone 4K vs 8K. I have an 85 inch 4K tv in my living room and recent 1080 content looks very good just with the built in upscaler.
On my smaller 55 inch tv, you literally can't tell the resolution apart from a normal viewing distance. I doubt many people even have room to fit a TV larger than 75-85 in their apartments, so to me 8K seems reduntant for tv productions.
And yes, I'm aware that it gives you flexibility in framing later on, but still... I think most pros will always frame their shots during the takes, rather then go wide and say "we'll figure it out later".
I have a 65” top-rated OLED 4K set in my living room. The picture is spectacular. (And I paid less for it than I did for the 46” Sony LCD 13 years ago.) I have an Apple TV 4K, but my sources all run through my receiver whose HDMI doesn’t support transmitting 4K information. I can stream Apple TV+, for example, directly to the TV and get 4K signal, but then the sound comes from the TV speakers, not bad, but not 5.1 surround in all its glory. I have tried looking at the picture both ways, and from my viewing distance, I think I can see a bit of difference, but that may be my imagination. The upscaled 1080p looks so good that I’d rather watch it with the really good sound than see the 4K. I have a 5K monitor for my Mac Studio, and had a 5K iMac before that. Video looks great on it from two feet away, but even then 1080p shown full screen generally looks good. For streaming, I suspect that bit rate can be more meaningful that resolution, beyond a certain point. (And I am not motivated to replace my surround receiver just to stream 4K when I don’t need to upgrade it otherwise.) I do shoot 4K video on occasion with my iPhone or my G5X II and then do my framing and zooming in post and produce a 1080p product. The iPhone has a fixed wide angle, so that cropping is frequently necessary, and the G5X II zoom is not something that looks decent or much controllable while shooting. Even my older iMac would eat 4K video for lunch in FCP X so it is not a matter of file size or editing speed. I certainly don’t begrudge anyone who needs to shoot 8K. I just can’t imagine ever being one of them.