Is the garmin explore collection different from the connect collection

I've been using my garmin 5X since 2017, so i've registered a ton of activities which i didn't want in my synced in garmin explore because they are already in garmin connect. But it happened and now i have a collection with over a 700 activities and it's nowhere near finished. I broke the sync of in the garmin explore app. So I have a couple of questions:

  • Can i remove the activities in Garmin Explore without removing them from garmin connect (Are those separate collections)
  • Is there a way to not sync the activities only routes and waypoint
  • And will there be an unwanted sync between two devices?

I've been trying to figure it out but it's very unclear to me. The other problem I'm facing is. I bought an In reach and what I most definitely want to avoid is syncing all the activities from my 5x watch to the inreach device. 

    • Removing an activity from Explore won't remove it from Connect
    • I don't think so. But I don't see any negative impact of having the activities in Explore, do you?
    • Not if you create two separate collections, one for your Fenix and one for your inreach, and only sync these to the respective device.