IMO, you need to stick to one training regimen / philosophy and ignore others.
If you are going to follow a TR plan, then follow the plan and do’t pay attention to the metrics or feedback you get from Garmin, Strava, etc. Different coaches constructed those concepts and likely have different philosophies, etc.
Which one you follow is up to you…but I would personally lean towards whatever company is focused primarily on coaching plans and expertise in that arena. But if you are piecemealing stuff from multiple sources, you are likely gonna get conflicting information.