Framework had a choice, go with old tech, which will become obsolete soon, or go USB PD. They are, I believe, the first to release a 240W USB PD laptop. Unfortunately, at this moment, until device makers get higher wattage power supplies out for sale, you can’t use the maximum load sustained indefinitely without starting to drain the battery. You need to put the OS into some level of power saving mode. This is only until we get new higher wattage power supplies.
Framework made this known in their forum / blog post about the Power Adapter on Jun 2023
Which is also posted to the Blog on the Framework website frame.work/blog and goes out to everyone who signs up for their email newsletter I believe.
Greater than 180W power supplies will come.
The issue is that purpose-built chip manufacturers haven’t yet put chips for greater than 180W USB PD power supplies into full production yet. It takes time to create, test, verify for production, and then ramp up production of new purpose-built chips. Then device manufactures need time to design devices, in this case power supplies, around the chips, and get them into full production. To be clear, the 240W USB PD spec is completely finished, it’s not a “draft” or proposal. And the FWL16 will have certainly been verified to support 240W PD using test equipment.