I think a closer look at some of what’s already been posted may address this but…
SS34 is the schottky diode (identified in simple [asynchronous] buck diagrams)
LEDA 1322 is a QX9922 buck controller, see my earlier post. Buck circuits all have some sort of control hardware to open and close the switch you see in any simple diagram (MOSFET in real life). The QX9922 is only present to handle the buck section, modes are handled with another chip which controls the QX9922 through a PWM signal.
AOEC/A0EC/whatever is the FET (MOSFET) - there are two but it’s not clear to me that both of them are actually part of the buck circuit. Other drivers also have a weird two-FET arrangment, see my post in comfychair’s New version DRY driver info thread goes here. Post #32.
151 is a resistor, 150-Ohms I suppose unless I’m crazy again (LowLumen will hopefully correct me in that case).
W8 is a zener diode - this is used along with a resistor to give a fairly regulated low voltage (5.1v probably?) for the QX9922 and the modes chip.
S4 is another diode. It’s probably a reverse polarity protection diode (protects the driver).
If you aren’t going to rebuild the damaged driver, please fully strip it of components and attempt to take clear pictures of the traces. Scraping the resist off of the whole thing in order to expose the copper is a valid thing to do.
If you are going to use it then you certainly can’t do that, but if you got really motivated you could check and see whether the wiring is similar to what I describe in post #32 of the new-dry-driver info thread.