I meant that it would be a whole another problem that I don’t think they would want to address right now, considering that they’re still fixing Proton. Creating an ARM translator with good enough perfomance would take several years, and I don’t think they would profit as much from it, they did Proton because they don’t want to depend on Windows (which in recent years has become a competitor since Microsoft is investing more in the PC gaming ecosystem).

Wine already existed but it took many years to get Proton to where it is now, and it’s still not perfect. I doubt they would want to start all over now that things are finally working.