The Wahoo Elemnt does have a Pause button so if making a stop along a route it can be stopped and then resumed for the remainder of the route. The 2020 and newer Creo bikes have software modified for compatibility with the Elemnt. I prefer to have my iphone turned off when riding.
Have you had any issues with the Elemnt freezing up during a ride? I've had my Creo all of a week and am still learning how to fiddle with all the settings. However the Elemnt (Bolt) has locked up mid-ride several times. MC seems to continue tracking, but to get it all to work I have to stop and reboot everything. I like the Elemnt display, but this is getting annoying.