Here's some of my applications for Li-ion AA's
Oculus quest controllers and other VR controllers. I don't personally have these, but this drop the voltage and will stop vibrating and stop working if the voltage dips to 1.2, you can find various accounts of this on the internet. Nimh doesn't work in these, and alkaline doesn't last very long at all and becomes expensive, quickly.
Xbox 360 controller, it will give you the dancing lights on the controller way too early, with li-ion I assume it would hold up with full power until it turned off, which could eliminate the annoying dancing lights. Must be ready to change batteries fast though if you are in the middle of an important game. You can't plug this one into a USB charger or the console to get instant power like you can with the Xbox one controller.
For the xbox one controller, not sure this is the best solution, but if you need power quickly, you can plug in a cord from the console to the controller, or a USB cord connected to any other power source, like a wall charger or a power bank, it uses a USB-C cable. You can also plug in the controller while the batteries are still in the controller and its perfectly safe. Nimh seems to work just fine for this kind of controller.
For the Wii controller I think these would work great. Especially when using the Wii controller with Motion plus which drains faster. I also heard that this controller becomes less responsive as the voltage drops especially when playing games with heavy motion controls, so if your Wii controller hits 2 bars left of battery, you need to change the batteries when it hits this. With these batteries it could hold up for a lot longer on 4 bars most likely giving you full power while you game. I've found nimh batteries work fine in Wii controllers though, so this would be a luxury item and with rechargables, if you need to change batteries when it hits 2 bars, that's no big deal. Also note the Wii controller saps battery when it sits, so its especially prone to leaks if you are using alkaline, you have to be careful with this one. Once the insides are destroyed by battery acid, these controllers will no longer function properly.
I have a red Canon SX150 IS Digital camera that I am still using. Takes 2xAA batteries. This camera will not power on with most Nimh batteries. The only ones I could get to power it were Duracell, some of the newer ones probably similar to ion core, I can't remember what kind, but they eventually stopped working in the camera. No dice with any of the eneloops or duraloops I have even if they are freshly charged. The camera will just display "change the batteries" for most other kinds of nimh. It powers on just fine with Li-ion rechargables. This is an extremely sensitive device.