Some projects keep surprising me with their “solutions,” and this is one of those cases. A proposal under review by developers from GNOME and Mozilla could change how middle-mouse-button paste behaves on Linux and other Unix-like systems.
The discussions, visible in Mozilla’s Phabricator revision D277804 and a linked GNOME gsettings-desktop-schemas merge request, focus on disabling the traditional primary selection paste by default.
Mozilla proposes changing the default behavior of the Firefox browser on Unix builds so that pressing the middle mouse button no longer pastes text by default. The author of the revision frames the current behavior as a source of confusion and accidental pastes, especially when users press the middle button without expecting the clipboard contents to be inserted into text fields.


For many people this is a non-issue. I think this a case of just accepting we are different and don’t need to force our view on everyone else.
Maybe 15 years ago I had a mouse with a tilting scroll wheel (for side scrolling), on that one I did have issues with middle click, for about a month until I got used to clicking straight down.
So maybe it is just a question of practice? Maybe not. But since both options exist there is no need to get upset.
Did you mean to reply to someone else?
Because your comment makes no sense as a response to what I wrote.
No, it was your assertion that a wheel being too fiddly. It seemed quite broad (stating it as an universal truth). It might be for you, but not for most people (but you wrote it as an unqualified statement).