The ambitious might get up early and go hiking, or get traditional Taiwanese breakfast (that was tempting), but instead, we hit the (surprisingly decent) breakfast buffet at Yomi Hotel, then packed up to the airport for the return home.
EVA Air's lounge was excellent, befitting a flagship airline in their home city. Beef noodle soup was surprisingly decent for airport food, and the liquor selection (Camus XO? Kavalan single malt?) was quite shocking in how high quality it was. Taipei Taoyuan International Airport may not be as large as some other airports, but it's very well executed and almost as grand and modern despite the age and slightly smaller size.
The return flight from Taipei to San Francisco was considerably more crowded than the flight there- the flight there had quite a few empty rows compared to every row being at least partially occupied on the return- but it still wasn't bad. Food was still the traditional United mediocre ("omelets" are truly horrifying) but the cabin crew was pretty good, and the crew's promptness let us beat the massive crowd to immigration (2 other flights came in at the same time!), which was awesome.
And with that, more or less, a weekend in Taipei was done.