Anyone running Destiny 2 from an expansion module?

Is anyone playing Destiny 2 with the game on one of the expansion modules?

When I ordered my Framework, I got the 250GB SSD with a TB expansion. Looking back, I definitely should have gone the other way around. The SSD is split between Linux and Windows 10. No issues with either running, and I’m happy with the performance. The Windows partition is for checking compatibility with some Python code, etc., and I had intended to play Destiny 2 with some friends. However, I didn’t realize that the download would be 100 GB, so the 250 GB internal drive got too small really fast. The game won’t get past the opening screen. Could it be that I’m not running from the main drive?