I believe us-east-1 is the default region so it’s probably a case of devs not changing their region unless they need to.

Also, 1000s of companies use AWS. In issue in any of their regions is likely to have significant impact on internet services

I used to run PFSense ( pretty much the same as Opensense ) and really liked it but moved over to Ubiquity in the last year or so. Here’s my 2 cents…

Go with Ubiquity if you want a single unified interface for managing all your devices. You’ll have “soft vendor lock in”, their kit will work just fine with a mix of hardware but it’s best if everything is Ubiquity

Go with Opensense if you want complete flexibility in the kit you’re using. I feel likeI had more fine grained control with PFSense than I do with Ubiquity but I think that’s a symptom of how the UI/UX rather than the features

You can do the same stuff with both options. I’m very happy with my Ubiquity set up, I don’t see myself changing anything anytime soon