Most newer Garmin watches can provide Stryders with two power fields. For example, you can have real-time power and lap power on the watch, in addition to having zone information.
On your Garmin, go to Settings > Activity Settings > Run > Run Settings > Data Screens
Select a layout of just one field. Add Stryd Zones. You will see 3 metrics: 2 power fields and power zones.
By default, Stryd Zones shows Average Lap Power and Real-Time Power. You can change that with Garmin Connect Mobile on your phone.
If you want any other metric, you can change the layout of the data screen on the watch, but Stryd Zones will then only show 1 power metric and power zone information.