Apple - Easy way to see a list of all the apps I have installed on my iPhone

if you're using a Mac install "Apple Configurator 2" from the Mac App Store. Choose your device while connected via USB and go to "Actions->export->informations" in the top menu bar. Then you can choose which details like installed Apps, serial number, etc. you want to export as csv list (you can open in Numbers e.g.)

There is a way.

Go to

Settings > General > Storage and iCloud Usage

You should see two buttons labelled ‘Manage Storage’. Click on the first.

This will give you a list of apps installed.

Hope this helps.