In theory, although camera raw formats tend to be more or less undocumented/proprietary, and the people with the resources to create tools that support them tend to be commercial enterprises (mainly Adobe and few minor ones) that are interested in getting you to use their latest thing (not going to work on your decade-old macOS, sorry).

And professional photographers tend to be largely nontechnical people who aren't keen on tinkering with some conversion workflow, possibly including ImageMagick or other Linux-native tools of questionable compatibility with the file formats (and again, on decade-old macOS) going just so they can do their work.

There are file converters. At least one big name company - probably Adobe - offered a free tool. I stopped using Adobe after LR went subscription, so can't remember the specifics.