this video sounds ridentical to mine.,
i stopped at a traffic light the oil pressure went to zero the it went back up i got home changed the timing chain and timing chain tensioners and the noise is there.

there saying big end crank bearings??

 

It would be better to post a clip of your own.

On this one the belt / pump bearing / alternator bearing squeal is masking the important sound but it does have the typical thump of big end bearing failure.

Not something to be ignored or postponed. It's a very short step from worn bearing shells to failure and a wrecked crankshaft.

Graham