@Thorr69
While that is true, they aren't the same protocol.

The SN30 2.4GHZ version can only work with their 2.4GHZ dongles, and not blue tooth.. it is not universal
https://www.amazon.com/8Bitdo-Sn30-Wireless-Gamepad-Original-nintendo/dp/B08536VCZL/ref=sr_1_6?dchild=1&keywords=SN30+pro+2.4&qid=1589492826&sr=8-6

While the Bluetooth version can work with any Bluetooth capable device, but the dongle is sold seperately
https://www.amazon.com/8Bitdo-Sn30-Bluetooth-Gamepad-Sn-Nintendo/dp/B07GK8LJBJ/ref=pd_sbs_63_7?_encoding=UTF8&pd_rd_i=B07GK8LJBJ&pd_rd_r=2669e596-b69c-4bfc-bc13-2e1906a42450&pd_rd_w=uxy7C&pd_rd_wg=D9CpO&pf_rd_p=d13bb895-21d3-4e96-94a7-553aaae51224&pf_rd_r=31X5SBQFWHGY1FWX1P6C&psc=1&refRID=31X5SBQFWHGY1FWX1P6C

Both can be hooked up directly, and I prefer the Bluetooth version of the newer controllers due to using USB-C instead of MicroUSB, but I've heard from a few people/sites that the 2.4 are faster with less input lag

https://www.retrorgb.com/krikzz-joyzz-vs-8bitdo-m30-2-4g-vs-8bitdo-m30-bluetooth-input-latency-lag-testing.html

and

However, I've noticed that after updating the BlueTooth controller/adapters 8bitdo sells, they seem to have sped up with my Pi... but I am curious if they really did become more stable, or is there something else.

2.4GHz usb adapter to SF30 and SN30 controllers with 2.4GHz 8bitdo receiver?