Garmin does not play well with Macs!
This problem even extends to the Garmin auto products. I almost went with Dynon instead of Garmin for this reason but ended up with the G3X touch. Great product but updates are always a frustrating adventure.
After upgrading to Catalina, I could no longer update my database. A call to Garmin and after 30 minutes of changing setting, permissions, it worked, or so I thought. One file never did update. Just tried again and the app comes to a standstill. Tried downloading the newest Garmin operating system for the G3X, it also came to a standstill. I will call Garmin again later today when I have time to waste.
To late to switch out of Garmin, may have to buy a cheap Windows (ugh, how do they work?) just to keep the plane up to date.
Scott A. Jordan
80331