Using two third-party power devices:
My Zendure SuperPort (not a hub or any other sort of data device - but does have extra power ports that can charge any USB-A device and/or 15W USB-C devices at the same time it supplies 100W to its main port) supplies 100W to the MBP without issue. IStat reports it as a 100W device, and it charges the Mac quickly, even when it's also in use.
On the other hand, my OWC 60W dock is entirely inadequate. It's easy to get the 16" MBP over 75W by running any intensive application while it's connected to an external display. Note that external displays automatically activate the power hungry Radeon. Even idling, it's drawing 30W with a display connected - half of which is the Radeon. A photo editing application or anything else that runs the machine hard will put the draw in the 65-90W range (often consistently over 75W or so), so expect a 60W dock to lose power if you're using the Mac harder than Safari, Word, etc. With a little help from Cinebench, it's not hard to get it up over 100W.
Most of us didn't buy the 16" to run Safari and Word, so 60W docks shouldn't be considered adequate for any serious use. I like the OWC other than this fault, so I'd love to buy a higher power version, especially if I could get either 10GB Ethernet, an XQD/CFExpress card reader or both in the deal. They have an 85W model now (which should be mostly adequate - it may drain a bit during spikes, but it shouldn't drain consistently), but it doesn't have either of the extra ports. I'm looking for something that's either 85W plus a useful extra port or two, or else 100W.