Whats are the risks that these companies are facing? Are these risks similar or different for both companies?

Lyft and Uber Risks
In 2019 two ridesharing companies Lyft and Uber went public.

Whats are the risks that these companies are facing? Are these risks similar or different for both  companies?

In 2020, with the pandemic we have an entirely new risk for these firms. Do you think these risks were
“priced in” when the firms went public in 2020?