It is hard for me to believe that there is a big difference between programming languages used by remotes as opposed to people in the office.
Myself I have mostly stuck to mainstream programming languages such as Java and Python with occasional use of C++, Scala, Bash and Perl scripts.
I know a systems programmer for Apple who writes C, technical writers, someone who writes Erlang and Elixir, also many people who do graphic design w/ Photoshop, Illustrator and similar tools.
If any technology matters to remote work it is the communication tools you use. In the last six months I have seen a big surge in people using Zoom and much less complaining from people that the tools don't work for them.