Let me expleain. My suggestion is a function that can delete the surroundings of a text. For example, if I have written a phrase, and want to delete something from before and after. The following text is the example, with the strikethrough text being the ones that will be removed.

Hello, everything is going great, I want to sleep but it's not late enough.

Maybe a ctrl + backspace, or a right-click option from the menu.

I was going to suggest this to windows but I love Opera Gx.