Today everything uses standard USB or USB-PD to charge. If it does not you can add PD modules to it. Having a 65 W PSU with only one port is very unfortunate as it limits it to a single device.
Imagine plugging in your laptop, phone and a charging case for your wireless ear phones into a single charger. This is already pretty common for such chargers and it gives the user the flexibility to bring only one charger on the go rather than multiple of them.
The nice thing about this is that it will have a minimal effect on cost but improve the practicality considerably. The size will also be pretty much the same.
For a 65 W PSU, it would be able to charge both the laptop and additional low-powered devices like a phone, smartwatch, TWS charging case, battery bank, headlamp or even a game controller or any other USB-based battery device. If the power supply is rated at a higher power output, the laptop can charge at the full 65 W power while also charging two other devices. A higher power design as an option, say 95 W, will also make it more future-proof. It will then be ready for any future device that can charge at 95 W, no need to buy a new charger and waste unecessary resources and money.
I find single-port chargers to be such a bad utilization of resources in 2022 as adding additional ports is a small part of the total part cost. It also lead you to take up multiple power outlets just to charge additional devices. It is such a trivial technical thing to achieve and has obvious environmental benefits.
So my suggestion is to revisit the design and at at least one additional port, preferably 3. The wattage can stay the same, but an optional higher power PSU would be great as well.
To address some points below:
If this is already readily available, why not just buy from someone else?
This is an easy and cheap design revision to considerably improve the product so it´s already not a big deal to achieve. As to why Framework should do it is because they do make a point about environmental impact and ethical sourcing. And I would rather want to support Framework, a company with great values and openness, than some Chinese company which doesn´t make these promises.
And I want Framework to succeed and make the best products they can.
What is the problem with single-port chargers exist, is it hardly a big deal?
If you care about reducing resource usage and not having to buy several chargers, yes. It´s better for the environment, you only need to pack one charger and it will only take up one power outlet. Looking for additional sockets and chargers should be unecessary in 2022 considering how little impact this additional practicality actually cost to produce.
So it´s about practicality and flexibility but also for the environment (which, to be fair, is something we don´t really have the luxury of ignoring anymore).
It´s considerably better features for about the same price. It´s a no-brainer to me.