With the latest bash update to 5.1 bracketed-paste is now on by default, which means pasting into a bash terminal shell will highlight the pasted text, with no way to unhighlight it.
I find this highly annoying … I know, first world problems.
To turn this off add the following to your .bashrc
.
bind 'set enable-bracketed-paste off'
Or if you prefer this behavior, do nothing …