MagSafe works with any type-C charger, and it doesn't seem to change the power profile as it is just a pin re-arrangement in a sense. I pluged my base 14" into a Satechi 108W and System Profiler says 90W is negotiated. It reports the same if I use a regular type-C power cable to the same charger, but on a TB4 port on the MBP.
This morning I also tried doing the same thing on a 82W 26800mAh battery bank and can confirmed both ways work, but I forgot to check the macOS power details at that time.