I setup my Mac (running macOS 12.x) to launch Sublime Text from the command line by making a symbolic link like this:
That lets me type `st` to open Sublime Text. I can also do `st file.txt` or `st file1.txt file2.txt` to open files.
The approach from the official documentation is to update the PATH that gets used to look for command line tools to point to the `/Applications/Sublime Text.app/Contents/SharedSupport/bin` directory. That sets up to use the binary named `subl`.
The reason I use the symbolic links is so I can use the command `st` instead of `subl` since it's shorter and easier to type.