Look at Tuxedo, I believe they are EU for Linux laptops. should have no issues for qubes install (besides maybe sys-net requiring a 5.8+ kernel and iwlwifi.disable=rxq_1 kernel option for new Intel cards).
Obtain kernel-latest-qubes-vm package on a usb and you can install just before rebooting on Qubes Install. Ctrl-Alt-F2, mount USB to /mnt/sysimage/mnt
chroot /mnt/sysimage/
cd /mnt
rpm -ivh --nodeps kernel-latest-qubes-vm
Then Ctrl-Alt-F6 to return to installer and reboot.
This way you can have working WiFi without having to require an Ethernet connection first to download the kernel. Note this would set all appVms to latest kernel, you can change default back to stable, and only change sys-net.
I have no experience with QWT or Windows VM in Qubes but I understand Windows 7 should work okay, and recommended to not be connected to any networking.
I would throw out any idea of gaming on a qubes laptop. It can be possible with a 2nd GPU (that is AMD) passed through to the VM, but again, no experience.