Of course it's trivially solved...with a dongle for your dongle! Or you could avoid dongle-ception by using a modular laptop like the Framework, or even a standard laptop with an HDMI port; even current-gen models from Dell, Lenovo, and HP still have it as an option especially on business-oriented machines. It all comes down to what your everyday requirements and tolerances allow for.

But again, the "dongle" argument is moot and not really a reason to either consider or avoid the Framework, for me at least. It's more about the device being open and repairable, and arguments about dongles are just attempts to justify one's current USB-C only device.