The disappearing scroll bar I found that many apps have disappearing scroll bar.
For example, this:

actually has scroll bar if I scroll with my track pad. (and I have no way to screenshot it as it keeps get disappearing).
I found it inconvenient for me, is there any way I can let it stay on all the time? thx
I'm using apple mouse on MBP, and the Operating System is,
$ sw_vers
ProductName:    Mac OS X
ProductVersion: 10.15.7
BuildVersion:   19H512
System Preferences &gt; General and in block &quot;Show scroll bars&quot; select &quot;Always&quot;