Jep, I have also same hardware with different model-names or brands. But I can deal with it, if I don´t waste my money with the drives I would waste it with other dumb stuff
But now I act more careful because only 3 manufacturers left, LG (DVD and BD-R), LiteOn (DVD) and Pioneer (BD-R)
So most drives you will find are from these 3.
Exceptions are some models from Samsung, QSI (Pioneer DVR-S21 and ? Panasonic Slimtype BD-R-drives?) which are still to get in some shops.
There are also some modified models from Vinpower, named Optiarc or Piodata, but if yo u don´t use the special features (overburn of DL, 4x-speed for some 16x DVD-media, 8x for some 48x/52x CD-R) it feels the same like a much cheaper 124F. I´m also not sure about the Teac 5600s because I have one from 2017 and read it have a different hardware which LiteOn never built in the same combination.