I would start by getting a cheapo mechanical oil pressure gauge and set it somewhere you can watch while driving to see exactly what’s going on. Your low pressure light will come on it it falls under 5psi so until that happens I’d say it’s safe to run the engine to diagnose. My cars have all had excellent oil pressure but a rule of thumb is atleast 10psi per 1000 rpm (30psi@3000rpm). Idle the lowest you’d want to see is 7psi. A healthy engine you’ll see about 15psi at idle. I would save the oil filter on there now and cut it open to look for debris between the flaps in the filter. Also drain the oil into a clear tub and using a bright flashlight look for debris usually aluminum clunks would be a sign of bearing failure.
Best of luck.