Screw holes or missing bolt

Joined May 2021
35 Posts | 9+
San Diego, CA
While sanity checking the bike pre-ride today (in areas I usually do not), I noticed these drilled screw holes in the swing arm.

I was planning on checking the parts diagram next for clues but figured I will ask here first.

Are these some sort of alternate/extra pre-drilled holes or I am straight up missing some bolts ?

The last major work on the bike was done about 2000 kms ago (where a bunch of accessories including full Akra, rear and front sprockets, race chain, etc. were installed).

Hope my left foot in the right bottom corner helps you better understand the location of these holes.

I have a 2021 V4.

Thank you

screw_holes.jpg