Just yesterday, Mrs. Warp Core was trying to enroll with an online service. The self-service email confirmation link refused to function correctly in Firefox on a desktop operating system (Windows in this case). It worked flawlessly on Firefox+iOS. Said link also shuttled the user straight off to the phone app.

I'll add that nearly ever other aspect of their public facing web, including the online chat support, worked flawlessly everywhere I tried it. This all just reeked of hostile design.

When asked about why this is, I simply said:

The browser provides good security and choice for the user. Apps provide good security and control for the vendor.