John Rumm wrote:

The push in wagos seem to bite into the copper quite well, they also
shroud the whole connection which ought to make for less oxidisation.

They are gas-tight, claim similar* contact pressure to screw terminals,
as they've been around since 1977 someone should have noticed any
problems by now.

https://www.wago.com/infomaterial/pdf/51184677.pdf

[*] which presumable does mean slightly less, otherise they'd claim
better rather than similar.