Still, it’s storage and heckin’ executables on your device. Everyone should get an option to use a website, even if just a poorly laid-out one, unless the vast majority of users only interact in a way that only works with local executables (like video calls). You should not need an app to check an IKEA order status on your phone (yes, they do that, see my other comment).
And I’m aware that video calls on some platforms can - and do - work in browsers but I won’t blame anyone who rejects their boss’s proposal to create a video call app in HTML/CSS/JS.