[2020] Help with compatibility on mobile

I want to buy a smartphone for my youngest brother, cheapest as possible but enough to run Fornite.

I'm seeing the Samsung Galaxy M11 but it doesn't appear on the compatibility list of phones but the seller says that it can run it.

I really don't trust that automated reply, so I ask here for advice for this.

That or other phone to play Fornite for cheap because I don't want to buy it just to send it back because of that.

Help please and sorry for the bad English.