The "back" button on android has two speeds: 1 10000 Hold the button for 1 second too long and five paragraphs are gone And there's no undo button Wild
Just double tap what you want to delete and back once. Double tap on a word highlights the word, try again and highlight the line. Drag selector to select exactly what to delete. Press back once. Android is wild. Wildly efficient.
I am running graphene OS on my Pixel 9. That feature didn't carry over.