No that’s the other way around. They are just so poorly programmed that they don’t use the normal mechanisms. Everything has to be reimplemented to work in that app. If you don’t think of a basic feature in the beginning, you have a very bad time. And since a lot of SPAs nowadays are programmed as “App”. They do not even have the concept of multiple tabs.

I am using an open source tool where there is an open ticket for years to make opening a link in a new tab possible. But because of the multi platform framework it seems very much impossible to implement.

This is the state of frontend development. Every few years they need to reinvent the wheel and sometimes they forget a place for the axle.