Having got the Roadrat with the same fork design, its a right PITA to be honest with a standard 9mm QR hub. Yes you can pull the fork legs apart (that’s how I do it) but be really careful with the wheel slipping out under load and the disc slicing your finger.
The issue comes with removing the wheel as there isn’t enough clearance in the brake caliper to twist the hub out of the drop outs, so I end up needing to loosen off mounting bolts on the caliper everytime I want to remove the front wheel.
If I used the bike more I would buy a proper 9mm through axle wheel but the only one I could find was Hope so needed a bit of money spent.
Let me know if you find a cheaper front wheel! In the meantime, I’ve put some extra sealant in the front tube 😉