Generally no. Some provinces officially operate in both English and French but some do not.

For a press release from a private company operating in Ontario there is no legal requirement to publish in both languages. Some companies might do so anyway if they have operations that are regulated by the federal government and/or they just want the goodwill.

Imported products have to meet Federal packaging laws, which do require both languages.

Ontario has a large French population

More specifically, just over 4% of the population:

> In 2021, 591,855 Ontarians (4.2% of the population) had French as one of their mother tongues. While this number varied little from 1991 to 2006 (+11,065 people), it increased steadily from 2006 to 2021 (+58,995 people).

- In 2021, 78.2% of these residents (463,120 people) had French as their only mother tongue, while 21.8% (128,740 people) had French along with other languages.

https://www150.statcan.gc.ca/n1/pub/89-657-x/89-657-x2023017...

This really depends on the context, but in general bilingualism is only required for the public sector and adjacent things (such as federal standards around food packaging). A private company like Waymo certainly does not need to send out a press release in English and French.