I recently bought the K&F NP-FZ100 batteries capable of charging directly via a USB-C port.
There are 2 main reasons why I chose these:

1. The price tag is considerably lower than for the original Sony NP-FZ100 batteries.
2. They can be charged directly via the USB-C port, so no extra charger is required.

I am out often photographing wildlife and carrying around my camera equipment in a backpack. Sometimes I do so over multiple days or on long hikes so weight is something I consider crucial, especially when carrying around a few heavy lenses in addition to hiking equipment, etc.
Charging the batteries directly via USB-C allows me to leave the charger at home. Admittedly, these are not heavy, but everyone who goes hiking will know that stuff adds up pretty quickly :D
Also, hooking up 4 of these batteries to a 4-Connector USB-C cable makes charging easy and fast enough over night to start off with a full set of batteries the next day.
I am very happy with the performance of these batteries so far. On my Sony a6700 they last basically as long as does the original battery.

So given the lower price tag compared to the original Sony battery and the more convenient charging, I recommend these batteries without hesitation!