If you use your Dell Inspiron 7559 as your primary work machine, you might want to hold off or wait until you can buy a new laptop. Microsoft won't support your specific configuration, and if something breaks, you are on your own.
Here is the good news. Just because Dell and Microsoft say "no" doesn't mean the hardware can't handle it. The architecture of the 6th Gen Intel processors is very similar to the 7th and 8th generations. In real-world testing, the Dell 7559 runs Windows 11 surprisingly well. dell 7559 windows 11