Hi all! I want to report that Sims 4 Studio runs decently on Linux. I use Lutris to run The Sims 4, and I was able to get S4S running by installing it to the same Wine prefix as the main game. I used "Run EXE Inside Prefix" in Lutris to run the installer then I set up my own manual shortcut to launch S4S from within the Lutris prefix. Most things work, however one has to be patient with some of the more demanding tasks. Extracting all tunings may take a couple tries to finish completely.
If you are having problems seeing the CAPTCHA, please clear your browser's cache and cookies and ensure that you do not have any browser addons or extensions that interfere with the display of the CAPTCHA. Then, close the CAPTCHA window and click on the register button to open the CAPTCHA again.