Our front end team doesn’t settle for ONE framework - they have several, all in the same application’s code base. There’s React, AngularJS, Angular, Vue (I think they started on that??) and even a bit of Jquery.

Is it an SPA? Well it’s an SPA per framework per page!

No one has the patience to port all the old code, and no one has any leadership to guide them. They’re just adding in flavor of the month and making it work somehow (kinda, well depends on who you talk to)