Most 3rd party Reddit apps supported this, and some other Lemmy apps do as well (e.g. Connect). Using an internal browser is nice because it doesn’t take you out of the app, and also doesn’t store browsing history by default.
EDIT: There are lots of comments pushing back on this…so I want to reiterate that I think this should be an option you can choose, not a replacement for the current behavior.
Agree only if the internal browser have ads and script blocked by default. Maybe even text-base only to reading websites.