Earlier quoted context omitted.
A couple of well-known ones are Automattic (WordPress.com) and Gitlab. Gitlab even has its employee handbook publicly available https://about.gitlab.com/handbook/
I have no problem admitting GitLab is doing a better job than we are, but they also have orders of magnitude more investment and have been doing it since their inception vs. since the pandemic. Any examples from a) non-unicorns, b) who have successfully transitioned to remote work?
To make remote work function you really need to follow a model like GitLab has provided with their handbook. You need to document everything and use practices that favor asynchronous work. You need to adjust your training, benefits, communications tools, management techniques, etc. You can't just "allow" half of your people to work remotely and expect things to work out. In fact, the hybrid model is often said to be the worst of all worlds as the people who work in the office often ignore the remote workers and make everyone's job more difficult.