Google 4K streamer and "auto" frame rate?

[Linwood]

I have four of these, btu one is connected to an AVR where I can easily see the input and resulting resolution, frame rate and bit depth. 

If I set auto, and watch something known to be 60fps (e.g. from yourtube), I SOMETIMES get 60fps, sometimes get 24 (as input to the AVR). 

If I force the streamer to 60fps, I get 60fps.  And that works because my AVR will up-rate (is that a phrase?) to 60fps.   

Is there some magic to making the "auto" work properly?

Or is it just better to force 4k/60 and leave it? 

Linwood

[branches78]

Hello, besides YouTube, what other app or apps are you using?

YouTube doesn't support auto framerate and neither other online streaming apps except Netflix.

However, the majority of online streaming apps support Quick Media Switching but you need to connect the device directly to a TV with QMS support since the majority of AVRs still don't support it regardless if they are HDMI 2.1.

[Linwood]

I was using Youtube because it had the stats for nerds as well as advertised frame rate on some stuff (primarily demo).  For watching I'm using netflix, prime video and Plex mostly, and I have no idea what their native frame rate is (well, plex is almost certainly slow from broadcast).   I do zero gaming, fastest I will get is whatever movies stream at (Netflix, prime, maybe occasionally AppleTV or Paramount+ if I'm desperate). 

My AVR (denon x3800h) apparently does not support QMS.   When you say YouTube doesn't support auto, is auto = QMS?

So is there any downside to just forcing 4kx60?  I assume the google streamer will up-rate it if the input is slower, and match if it is 60?