WIY: This semi true. Ashkenazim though do old of Shavua Shechal Bo in the literal sense, to be more machmir on cerain things. I asked a shailah to the Moreh Horeh, because I wasn’t certain if Ashkenazim wold be able to make a siyum to eat meat this year. He told me one could.
Sam2: Correct, however “Yeish Mi Sheomer” in the Shulchan Arch usually (I would guess there to be some exceptions) that we don’t hold of that opinion (Yeish Mi Sheomer is a lashon implying a minority opinion)