I sympathise, but talking to my sister I've come to appreciate a different point of view. I have an "app", a PWA, that she says she cannot find because it's not in the App Store. Despite telling her it's available as a website, this seems too much... she just doesn't use — or is comfortable using — Safari.
My favourite thing about using a website? It can't send me attention grabbing notifications. It can't harass me for perms.
I'm 100% an outlier. My friends don't blink twice to install all manor of loyalty, news, social media, lifestyle, games etc etc and rarely clean up. It's all just choices and preferences - the world does not suit me.