Do Tidal "Master" files retain sample rate when streamed via WiFi or Ethernet?

When streaming a Tidal Master 192kbs file to my computer, and with Roon I redirect it to Sonos or ChromeCast via WiFi or Ethernet, is the 192kbs sample rate maintained?

No they will be downsampled to the maximum the device reports it can receive.
You can see this by clicking on the signal path icon in the now playing screen.

https://help.roonlabs.com/portal/en/kb/articles/signal-path#:~:text=at%20all%20times.-,How%20to%20Find%20the%20Signal%20Path,that%20the%20audio%20is%20taking.