@mklovenotcyber @skinnylatte Endurain is my planned Strava replacement:
https://github.com/joaovitoriasilva/endurain
And this list has been great to inform my other decisions about it, Awesome-Garmin:
https://github.com/bombsimon/awesome-garmin
If you have a lot of data in Garmin Connect already, there are also tools to download your data and bring it back in house to import into these other apps.
I'm trying to remember the data container for analyzing and making pretty / usable graphs. I'll follow up with that when I find that.