Thanks! The context menu (right click) on a link should provide that option - and in my case it works. Sometimes HTML/CSS makes text look like links but in fact they are not actually "a-elements" which are needed for the context menu to work. You might want to check at several places and also make sure you didn't deactivate the context menu in the Advanced -> General -> Context Menu preferences. In case the problem persists I'd need more information; feel free to open a new issue on GitHub in this case: https://github.com/stoically/temporary-containers/issues

Dragging text into the address bar is not catched by "Mouse Clicks"-Isolation. You'd need to configure "Navigating in Tabs"-Isolation for that to work. The reason the Navigating-Isolation isn't recommended is that it breaks redirects to 3rd-party domains (e.g. SSO Logins, Payments) which need to be dealt with.