I've increasingly noticed people online using the following construction, sans "if":

Imagine you died on Spotify Wrapped day.

To my ear, it feels like the sentence should read:

"Imagine if you died on Spotify Wrapped day."

I know that this is related to the subjunctive mood, but is the first construction correct as well? Or is the "if" necessary? Or is "imagine if" a colloquialism to begin with?

I've tried to research this topic but mostly find results on "imagine" used in the imperative sense.

I've increasingly noticed people online using the following construction, sans "if":

Imagine you died on Spotify Wrapped day.

To my ear, it feels like the sentence should read:

Imagine if you died on Spotify Wrapped day.

I know that this is related to the subjunctive mood, but is the first construction correct as well? Or is the "if" necessary? Or is "imagine if" a colloquialism to begin with?

I've tried to research this topic but mostly find results on "imagine" used in the imperative sense.