A modern 35mm film scanner for home

I’ve got a decade’s worth of 4x6 pictures and negatives from my childhood. Would something like this help me digitize them?

No. 4x6 negatives are large format and requires a different type of scanner (flat bed). If you look at the photos the 35mm roll slides into the device so you can’t fit a larger format sheet into the feed.

You might be confusing 4x6 inch prints with 4x5 inch film.

35mm typically uses 2:3 ratio images, often printed as 4x6 inch pictures.