ALL vs EVERYTHING

[vakhoia]

Could anyone be so kind as to tell me whether both of these sentences are correct in grammatical context or not, if that's the case, are they interchangeable in this meaning, in other words do they both convey the same idea:
A) I'd like to know EVERYTHING about the incident.
B) I'd like to know ALL about the incident
Thanks in advance,

 

[Casiopea]

Could anyone be so kind as to tell me whether both of these sentences are correct in grammatical context or not, if that's the case, are they interchangeable in this meaning, in other words do they both convey the same idea:

A) I'd like to know EVERYTHING about the incident.

B) I'd like to know ALL about the incident

Thanks in advance,

A) is the more preferred, though B) is fine, too. Speakers use it:

I'd like to know all about the accident.
I'd like to know all about you.

By the way, did you know that 'all' has an omitted object,

I'd like to know all (that you know) about the incident.

All the best,