Which USB chargers can i use?
Not just any USB charger will work. You need a USB charger with a USB-C output that supports (at least) USB PD (Power Delivery) of 100W (20V, 5A). Such chargers will also support various lower USB PD modes, ensuring optimal performance.
So, you can’t just use any USB charger — these 100W USB PD chargers often need to be purchased specifically to meet these specs. Most USB chargers you might already have lying around will not support 100W USB PD.
The same goes for the cable used; not every USB-C cable will work either. It must explicitly support 100W charging. Again, most cables won’t support that by default — you’ll need to buy one that specifically does. The charger comes with a cable that supports 100W charging, but if you need an extra one, keep this in mind.