Earlier quoted context omitted.
To be fair, Edge has a good feature support (check caniuse.com). It would be interesting to know what the exact issues your app has with the browser. Otherwise it sounds more like your devs like to use some vendor-specific hacks and blame Edge for it. I know there are some Flexbox things to consider, but nothing a small team can't handle. IE11 is another story, though.
I'd also be curious to know what features that Edge doesn't support. I know it doesn't do everything Chrome does, but I haven't run into any scenarios that Edge didn't support in a long time. It's a pet peeve of mine that apps don't support Edge/Trident, Vivaldi, etc. It's easier to write cross-browser code than ever, but it seems like we're in the process of reverting back to the bad old days when IE6 was the only b…
People are literally doing User Agent Sniffing again, and even though these browsers carefully craft their UA string to pass naive checks, the sniffers are hacking around that and urging me to "Download Chrome" to use a website.
Notable Offenders: Google Hangouts, and banks. Not impressed, Google.