Is Smorgasboard at Kabbalas Ponim considered Seudas Mitzva

If so, are you obligated ( or would it be better) to wash for Hamoitze.


It may very well be, as you are attending a mitzva gathering but the seuda when the bread will be served will be later.

The Rav has attended weddings where he ate at the chosson table but I never recalled that he washed till entering the Hall.