You don’t use Gmail, Google Docs and Maps, Outlook, Youtube? My wife uses a transcribing web app called Otter. All the fantasy map authoring tools I’ve used recently (for TTRPG use) are web apps, like Inkarnate. Arguably even Facebook, Reddit and LinkedIn are really more web apps than web sites. On mobile most people would use an app for all of these services, on desktop they’re mostly tabs in a browser.
I do not use Gmail. I have my own domain like since forever and use Thunderbird to read my email. I do not use Google Docs, I use Office Suite from SoftOffice instead.
I do use Youtube, Google Maps, Google Translate, Netflix and Amazon store. I do not think they make anywhere close to even 10% of what I use. I do not use Facebook, Reddit and LinkedIn. Well I do have accounts and I used those couple of times to find particular person but that's the extent.
On mobile, the only apps I use are offline GPS - OsmAnd and some that control my gizmos like drone. Other than that my phone works strictly as a phone and does not even have data plan.