mrBeginner-Mint
I'll second @murbert's suggestion. As a beginner, you'd be much better off with a simple plain vanilla install, rather than dealing with multiple drives and Windows overwriting your boot partition. Better yet, find an old machine that is gathering dust and install Solus on that. Beg, borrow, or if necessary, buy a cheap one from the thrift store. A dedicated install will prevent any Windows shenanigans from hosing your Linux install.
After you've reinstalled Solus two or three times (you aren't learning unless you are breaking things, eh?), you'll be much more familiar with partitioning schemes and you can get a bit more creative. And when that time comes, I would strongly suggest that you don't mix Windows and Linux on the same disk, nor allow them to share an ESP partition. Keep the OS's completely isolated on their own disks if you want reliability and then use the UEFI boot menu to select which OS to boot.