I updated Last night my GCM Android to version 4.69
I installed the latest bêta for fenix 7 14.23ɓ
Previous to those 2 changes i had my speed ajusted to the elevation.
And today it's not available anymore.
Screenshost provided 

I have no clue if it is linked to the latest update from GCM or the fenix 7 beta.
But if anyone has another watch model and the same GCM version it could be helpful to see if you have that information or not. So we could pinpoint the culprit.
Crosslinked to bêta fenix 7 forum
Edited for typos