How to show dock on all monitors in Catalina?

I have my dock on the right side of the screen, but it only appears on my designated primary display. How can I have it so that it displays on all screens instead? Nothing I've seen online seems to work.

This isn’t how the dock works. Apple puts it on one screen only.

You can do some setting with mission control and hiding, so you might be happy with that.

• How to get a dock on multiple monitors
• Is it possible to have my dock visible on all monitors in El Capitan?
• show dock permanently on the primary display only or simultaneously on both displays

You could use a third party app to make a launcher window on multiple screens or move to using a keyboard based launcher like LaunchBar or Alfred.

Most of the time I use my MacBook via thunderbolt 3 dock, 4k display, mouse and keyboard.

when I find myself doing the kind of work where I need to refer to one screen while manipulating another screen, I push the keyboard aside and open up the MacBook.

I've discovered this app that, more or less, mimics the dock on the Macbook's Touch Bar:

https://pock.dev/lack/

it is not perfect, but rather than choose a single display, I can quickly switch apps with a single tap without moving my hands.

not perfect, but it is what I am using until I can have 'dock left/auto-hide' on two displays oriented vertically.

You can have a bottom dock on both displays, but the bottom is the absolute worst place to have the dock.