Using MBP 16 / 2019 - (**note: not targeted to a remote ipad (more than 6 feet away).
Only way I've been able to have pseudo-remote to the iPad is to cable it to the mac, open quicktime, start a recording, select the ipad as source, and the ipad screen shows up in a window on the mac.
Now using a bluetooth mouse and keyboard (I use the Logitech MX Keys keyboard and Performance MX mouse set - can connect to 3 different BT devices), switch to the ipad's device number (1 / 2 / 3 on the mx Keys, push-button on bottom of mouse), and you now have mouse/kb interaction with your ipad in a window on the screen of the macbook.
** Caveats:
- It's not technically 'remote control', but it does at least let you put the ipad aside and not look at the screen if you want
- However, the best functionality comes with keeping the ipad in front of you as well, since sometimes using the touch-screen is quicker
- Also noting some mouse lag when doing the quicktime method
- I'm exploring other air-play solutions which may improve this, along with making wireless airplay possible
- This way full-power charging can occur while air-playing the ipad (since USB ports can't usually power/charge an ipad (needs to deliver more than 2Amps)