Most people use everything if you give it to them .. and they stop using it when its not available anymore. Thats the same with drugs and alcohol and fat food but just because its available and most people "would" use it does not mean its the best solution.
Where is the problem when you use your browser and an automatic login to open a site ? Or do you think they will break their wrist when they use a browser ?
When there are not apps but they want to enter TikTok then they will use the browser and you will see - after a week or two nobody will remember an "app" anymore
btw do you know why apps are so promoted ?
Because the moment when you download and use an app you hand your userrights over to the app-owner - no data protection inside an app, the app owner has legal control of all your data !!