I mean, I feel like we should've seen this coming. They chunked off a significant portion of the market, and now they can try to make tax filing more expensive such that they can make more money. It's disappointing, because I love online tax filing, and I just hope their lobbying efforts don't pay off.
I understand the curiosity aspect of "Can/could I do this?", but from a practical standpoint, why? A gaming desktop is more practical, cheaper, easy to improve and change, etc. But if your problem is mobility, a gaming laptop is probably cheaper to start off with, then it definitely is after the external gpu.