If you have been receiving SSTV, then you’ll typically know the go-to application is MMSSTV by JE3HHT. It’s s as old as the hills, first released in April 2002 and runs on pretty much anything. I find that its TX template design is particularly good to use.
If you have been a Linux enthusiast, then the go to application to run windows applications is WINE. It’s as old as the hills, with development starting in 1993 and runs on pretty much anything.
Not being entirely happy with QSSTV’s UI, I went about seeing if MMSTV could operate under WINE.