To clarify: I want both. I only buy laptops with barrel jack and USB-C. The same with mini PCs.

It is OK for travelling. But my portable USB-C monitors randomly switch off for power renegotiation!

USB-C is not so great for stationary use. I always run into issues where all USB ports can not be fully powered, despite sufficient power rating on USB-C adapter. Older Macbooks would even discharge, while plugged, USB-C could not deliver enough juice, for high performance apps!

And those bloody things are supper expensive (like 100 euro). Cheaper are highly questionable and not even grounded!