In case anyone is interested, we've decided to standardize on the 2019 Shield in my house. I have tubes in the kitchen, bedroom, and workout room. I am going to get a Pro for the Living Room next month, after my BestBuy rewards show up. That is the only location where I am likely to game. We will still have FS4K devices on all the TVs as a backup, as well as a Roku and an ATV4K in the living room since we already own them. We dislike the new Amazon FireTV UI (Ads! Ads! Ads!), feel like Roku has gone downhill in general (even though their market share is exploding at the moment), and don't want to have to deal with the IR or expensive Harmony requirements to have an easy to use (for us) ATV4K remote. With AppleTV+ coming to Android TV this year, we feel like the Shield is going to be our best bet going forward.
Anyway, there you have it.