Tailscale & Starlink in Firewalla

This is going to seem like a bit of a stretch, but does anyone have a working proof of concept for this?

My main ISP is Verizon, and my secondary is Starlink. Both are added as WAN in Networks (ISP1 & ISP2). I'm trying to use Tailscale on the Firewalla to add it to my existing mesh. If Starlink even exists in the networks for Firewalla, and its IP routes exist, Tailscale will not work. Both Starlink & Tailscale use the CGNAT prefix of 100.64.0.0/10. I gave my Tailscale a more specific prefix of 100.69.69.0/24, but this still conflicts with their /10 obviously.

The second that I remove Starlink as a WAN, the ping immediately starts working and traffic between the mesh works. I've tried a bunch of ip route commands, ip rule commands, etc, and nothing seems to work. Any ideas?