Windows XP still has unpatched vulnerabilities that exist regardless of how modern your browser is.
If you cannot use Supermium, these browsers have historically maintained XP support, though they are increasingly rare: microsoft edge for xp
Why do users still seek "Edge for XP"? For some, it is —the desire to keep a beloved, lightweight interface running against all odds. For others, it is necessity , as legacy industrial or medical hardware often remains tethered to XP-specific drivers. Windows XP still has unpatched vulnerabilities that exist
: Edge requires modern system calls and APIs (Application Programming Interfaces) that simply do not exist in the aging XP environment. it is necessity