There should be a distinction made between #web applications (applications that can run in any web browser which supports certain #standards) and applications that are allowed to run only on some selected web browsers (with other browsers being possibly banned).
The latter include #WhatsApp Web, #Slack, #Asana, #Google Spreadsheets… Marketing them as “web applications” is inadequate, similar as would be marketing #Electron-based applications as “web applications”.