Something I haven't seen mentioned anywhere in this thread, which is unrelated to power delivery but very related to dock choice -- the thunderbolt controller in the TS3+, OWCs offerings, Elegatos dock, and Pluggable is the old Alpine Ridge controller which only supports DisplayPort 1.2 which means no HDR. The only dock I currently see available that uses the newer Titan Ridge controller is the Dell WD19TB dock which enables DisplayPort 1.4 and gives full 10-bit HDR support. I realize HDR is a relatively new thing as far as computer monitors go but I can't see myself buying something that's immediately out-dated when my next planned monitor upgrade will be HDR capable. My current monitor is 4K but old enough that it doesn't support 60hz over HDMI, only DisplayPort (an old Dell 2715q revision A). A few people posted about the Dell dock with good results, it's current $225 on Amazon so I just ordered. I'll update how it goes. For me 90w sustained should be fine as I rarely engage the GPU in any meaningful way, all my intensive work runs on a local cluster and the MBP is used for coding and testing on toy datasets.