Fix holes in the wall (from drywall anchor)

[phattrance]

Had a shelf above the TV that collapsed today and I had previously used 4 drywall anchors with screws ( https://www.clasohlson.com/se/Gipsankare-med-skruv/p/Pr409228000 ), but for some reason, the shelf couldn't handle the pressure and the center speaker fell down.

Does anyone know how I can fix the two upper holes? The two lower ones I will cover with a new shelf that will "cover" the existing holes, so it's only the two upper ones I need to fix since they will be completely visible.

Do you think this "one time filler" will cover the upper holes, or will it be too visible? https://www.hornbach.se/shop/Vaggspackel-ONE-TIME-Filler-0-3L/4254509/artikel-detaljer.html

I neither have the knowledge nor the energy to fix (putty and paint) the whole wall, so I just want a quick fix.