Garmin Express Crashing Repeatedly w/ Mac

I recently purchased a Fenix 9 Pro and have been unable to set it up due to the known Garmin Express issue on Mac discussed in this thread:  https://forums.garmin.com/apps-software/mac-windows-software/f/garmin-express/443104/garmin-express-mac-and-fenix-9-problem/2067896. 

Prior to the supposed fix (the official "fix" posted by Garmin Support didn't do anything for me) being rolled out a few hours ago, I spent considerable time trying to troubleshoot the issue myself. As part of that process, I deleted Garmin Express and its related files, which also removed my previous device -- a Fenix 8 that I still own -- from Garmin Express.

I've since tried repeatedly to re-add my Fenix 8, but Garmin Express crashes every single time.

I've worked through every troubleshooting step I can find, including all of the recommendations in Garmin's support documentation (https://support.garmin.com/en-US/?faq=s8Bh5FrhH77g36G9W3ueq9), but nothing has resolved the issue. The behavior is exactly the same each time:

I open Garmin Express on my Mac, connect my Fenix 8, and Garmin Express recognizes the watch and gives me the option to "Add Device." The moment I click "Add Device", Garmin Express crashes. I reopen it, try again, and the exact same thing happens...over and over.

At this point, I've spent hours troubleshooting Garmin's software and am now sitting here with two Garmin Fenix watches -- a Fenix 8 and a brand-new Fenix 9 Pro -- and no functioning way to connect either of them to my account through Garmin Express.

This is incredibly frustrating and disappointing. These are premium devices carrying premium price tags, and customers should not have to spend hours troubleshooting basic setup functionality because Garmin's own desktop software is unstable or broken. Help!

For reference, I'm on an Apple silicone Mac running Golden Gate OS (27.0).