OAKLAND, Calif. — With the pandemic still in full swing and the first doses of a coronavirus vaccine just starting to ship in the United States, Google has pushed back the planned return to the office by a few months, to September 2021.But even as it extends the remote work period for most of its staff, Google is laying out a series of proposed changes that may substantially alter how its employees and people at other technology companies will work.In an email to the staff on Sunday night, Sundar Pichai, chief executive of Google’s parent company, Alphabet, said the …
