[xfalcox]

That is only done if you are in a topic page where the amount of posts is higher than 20 replies.

In that case Ctrl+f is redirected to a search that is scoped to the current topic and can search it all.

Other pages don't have the search hijacked, and of they do you can press Ctrl+f twice to open the browser search.

[tuananh]

last i tried discourse was in 2016. things may have changed.