I'm a ST convert... but still only partially converted over. Thus, I have some things on ActionTiles and others in Hubitat. It would be great to be able to make a dashboard with an iFrame that I could load actionTiles within.
Take a look at SharpTools.io which supports SmartThings and Hubitat simultaneously.
Alternatively, some people use one of the hub sync apps to mirror devices from one platform over to the other.
i was thinking something similar. it would be great to have a tile that would render whatever html is entered.
While a bit more work housepanel can do this.