Apps refreshing really quick when switching between them

Every time I switch from one app to another, and back again, they refresh and I lose where I was and everything I’d entered up to that point.

it is driving me nuts.

I might use Google to go to a site, then use an app to find some data, then go back to Google to carry on and it reloads the home page!

Every time, for everything!

I’ve searched for tips and nothing helps.

I cannot believe Apple is not aware of this.

Please tell me how to end this nightmare.

Thank you.