As all factories in Russia were owned by the government, it was their policy that set the standard for matzah production.

Source: https://www.jewishpress.com/judaism/jewish-columns/the-yahrzeit-of-the-rebbes-father/2023/07/28/

It’s traditional to eat matzah, which is like a cracker but is also used in a soup.

Source: https://chicago.suntimes.com/2023/4/3/23668023/passover-2023-seder-jewish-holiday-easter-when

More than three times as many of you preferred the spelling of “matzah” over “matzo”; some suggested alternative spellings altogether, including matzoh, matzuh, the Boston-accented matzee and the perhaps Italian-inspired mazza.

Source: https://forward.com/community/541598/matzah-matzo-yehuda-manischewitz-passover-spelling-hebrew/

So too, right after the ceremony, breaking the middle matzah into two, which also symbolizes the splitting of the Yam Suf.

Source: https://www.jewishpress.com/judaism/parsha/why-the-yam-suf-split/2023/04/11/