I have a Dell U2722DE monitor that can provide 90W via USB-C PD. I would very much like to use this instead of needing a second cable for my at-desk use. When travelling, I can bring a 100W charger.
I will have the laptop plugged into the monitor almost at all time. I’m not going to be gaming on this machine.
Is 90W likely to cause me grief since a 100W charger is recommended?
I don’t see why not, assuming that you are not using the dedicated graphics card. I just ordered my 16 and have the Dell U2720QM, so I’ll test it when I receive my laptop.
I am using a MSI display (MAG 323UPF), which can deliver up to 90W (not sure if it is effectively delivering that, but it is what the manual says). My FW16 (without gpu) gets charged even while under heavy load (e.g. compiling or gaming).
So I think you’ll be fine charging your laptop through your screen.
This reply is probably redundant, given all the others above, but I’ve used both a 100W and a 65W charger on mine, while doing C++ and Python programming work. I haven’t noticed any dip in the battery charge at any point, even while doing a five-minute compile on four cores at once.