Some things yes. I don't have any social media apps (not even lemmy) or YT but my car charger requires an app, my AC has an app I use from time to time, my Garmin GPS has an app, I have to use MS Authenticator at work, my car has an app and Android Auto and 90% of public car charges require an app. None of this has website alternative. Can I live without them? Well, not without work obviously and where I live electric car infrastructure is so tied to mobile phones I'm seriously considering just giving up and going back to a normal car.