If your windows software works in a vm or wine then that might be a better choice for you.
The only thing windows will do with to a Linux install anymore is mess up the boot. People still say two separate drives is the optimal choice to prevent this but it really doesn’t save you from anything but fat fingering your own partitions during the install process and if the disks are the same size/interface/manufacturer it doesn’t do much there either.
So as has always been the case since dual booting existed: install windows first, saving the space you want to use for Linux then install whatever you want. Have your distributions preferred method of repairing failed boot on hand so that when something breaks unexpectedly you can fix it. Often it’s more than a boot repair tool, but an entire bootable environment that can be used for all kinds of purposes.
Use uup dump and rufus to make a windows installer and put it on a usb. I specifically recommend rufus as opposed to dd or other normal way of doing things because it has special options regarding windows oobe and requirements that will be invoked on use.
It doesn’t matter if you choose 10 or 11. Both can be had in ltsc channels. Dealers choice, you’re the one with software that needs it!