I’ve had bad experience with Dell and their chargers. Took 2-3 attempts at an RMA to get a working one.
I am currently running a Klevo (branded as Gigabyte) laptop and its working great for my needs.
Also it looks like the Framework Laptop is in budget for you. Not sure if you’ve looked into them.
As everyone else is saying the issue is that priacy is easier.
That said if you have a HDMI recorder and a HDMI splitter (1 in 2 out) you can strip HDCP and record the signal.
With that said there are some fruity USB c tablets which will get you better results. Droid tablets can work too if you are OK with gui