I have noticed that my runs imported from Strava and recorded using a Garmin Instinct 2 apear to have faulty data.
Total time seems to match but times regarding power, hr, and pace are off.
Here is an example:
ran ~ 30min
total time in zones is way less
Could be this private circle around your home, which Strava may not be providing correct.
But it’s just a guess.
You can export the „Original“ fit file from intervals directly (under data tab) and see if it’s look the same as the one from Strava. If it’s not the same, Strava is providing a different file over there API.
Thank you both, this is indeed the case, i am used to cycling a lot where 1k or 2k are not as noticeable. I have now switched to importing the activities directly, which solves the issue.