The database migration was absolutely nuts.

pg_restore: processing data for table "public.users"
pg_restore: while PROCESSING TOC:
pg_restore: from TOC entry 4189; 0 22161 TABLE DATA users pleroma 
pg_restore: error: COPY failed for table "users": ERROR:  value too long for type character varying(255)
CONTEXT:  COPY users, line 46101, column name: "N̶̽̿̇̀̇̽̈̂̈́Σ̵̛̤̅̈̑̉͘͝