you can fast-charge with a 96W or higher USB-C charger and USB-C to MagSafe 3 Cable or USB-C charge cable. On the 16-inch MacBook Pro, you can fast-charge only with an 140W USB-C Power Adapter ...
You can connect to monitors via a USB-C (via adapters to non-USB-C ... and the 16in MacBook Pro at 96W. You can certainly use a charger at lower power, but remember that it will power up slower ...