I commented on the cross-post, but I thought it might be interesting for others in this thread. The product basically fits the requirements very well:
Unfortunately, the mouse is only sold in a keyboard/mouse bundle, but the “CHERRY STREAM DESKTOP RECHARGE” bundle might be something you would be interested in. Both keyboard and mouse have replaceable batteries and these suckers are built to last. The mouse is little bigger, so def. have something in your hand and it has super silent buttons. I especially like the type-feel of the keyboard. I am normally totally I to mechanical keyboards, but I can totally tolerate typing on it. 😉
Edit: Oh, and I forgot. You can recharge them with a USB-C cable. They also use off-the-shelve NiMH rechargeable batteries that you can get almost everywhere if you want to replace it in the future.
(Disclaimer: I work for Cherry, but IMHO it is still a very good product for the price. )
Just FYI: There is at least ONE product that has both. See my other comment in the thread if you are interested. 😇