same here: Samsung S7 SM-G930F (from e-shop)
1.5-q-20221028230220-stable-herolte
just checked: Yes, phone calls have very annoying echo for the other end
(first phone call since the update, didn´t check before, will check next time earlier for sure)
no workaround to offer, would appreciate one too
edit: gitlab issue reported here: #6210