OWC Thunderbolt 3 dock randomly turning off and on, MacBook Pro Monterey

Just a few thoughts....

Maybe one of the other external devices you are using at home is causing the problem. Disconnect the other external devices to see if that makes any difference.

Theoretically a UPS will help eliminate home electrical issues. You may have some sort of issue with your home's electrical system which is causing odd behavior of these devices. Besides the home wiring, it includes possible issues with any surge/power strip being used, and even other appliances & devices not even connected to the computer. Home appliances (Refrigerators, Microwaves, Ovens to name a few), or a Laser Printer, or even florescent lighting that is turned on & off may affect the power circuit enough to cause a problem.

Have you tried taking this Mac and dock to another physical location (even taking it to work to test if the employer allows it)?

Do you have any software installed on the home Mac which is not installed on the work Mac? I know that some third party software has been known to interfere with some external devices. One common example is a Wacom tablet has been known to prevent an external drive from operating correctly unless the drive is mounted before connecting the tablet.

You may also have a hardware issue with the Mac that has not been noticed until now.

Is there any firmware updates for the dock?

Definitely agree that OWC has great tech support and should be contacted for advice. I would find it surprising to have multiple devices fail (although if you have my "luck" then it is possible).

OWC prides itself on its Mac-Centric support.

ASK THEM!