Edit
After using this for the past week I'm returning it, the corner of the remote digs into the palm of my hand and makes using the remote unbearable after a while. This likely only affects those with larger hands .
I was looking for a better remote for the CCwGTV as I can't stand the tiny remote it comes with and happened upon the G20S PRO (pictured below). It works perfectly over Bluetooth and all buttons including air mouse and Google Assistant work out of the box.
The remote also came with a 2.4ghz dongle for use on other devices which may not include Bluetooth.
The remote is backlit and has clicky buttons if you like that sort of thing, I prefer the buttons on the factory remote as they are quieter but I can certainly live with the clicks.
It has a $5 off coupon currently which makes it $15, personally I don't think it's worth $20 but fifteen is a good price.
Here is the link on Amazon but it can also be purchased from AliExpress and likely other China locations.
https://www.amazon.com/dp/B09JSX4JLB
NOTE
I tried it on my Hisense H8G which uses some sort of non-standard remote mappings and the Assistant button wouldn't work and the home button also wouldn't go home. The microphone still worked if you manually click any voice search button on the home screen or inside an app, the home button can be fixed with button mapper but not the Assistant button.
My advice don't buy this for a Hisense Android TV.
I bought the ONN stick at Walmart for $15 to get the G10 remote that comes with it, much better than the CCGTV remote.