There is a border around drop shadow

Hello, please help me solve this problem, I tried searching online but can't find the answer anywhere.

So there is a border-like-shape around my drop shadow, I don't know if its software or hardware problem.

As you can see it's not smooth enough, and this is my Raster Effect Setting

And this is the export for web result

My device is Omen 15

Radeon Software Version - 19.40.54.01
Radeon Software Edition - Adrenalin
Graphics Chipset - AMD Radeon(TM) Graphics
Memory Size - 512 MB
Memory Type - DDR4
Core Clock - 1750 MHz
Windows Version - Windows 10 (64 bit)
System Memory - 16 GB
CPU Type - AMD Ryzen 9 4900H with Radeon Graphics

Please help me solve this 😞