I use this mod

https://www.nexusmods.com/valheim/mods/1042

Disabled the small trees, flintstones, stones and branches
Increased berries und mushrooms to 10 to plant.

I think the issue is that they appear with the green leaves on top of the berry in the inventory image. Raspberries don't typically have leaves on top when you pick them, and strawberries certainly do.

Raspberries do have leaves attached to their upper part as a rule. You almost never see them because they're removed before sale.

Guilty

Red raspberries (like are in the game) can grow to a length of about 3-4 centimeters and they grow in clumps on bushes that are 1 meter tall and 1/2 meter wide to 2 meters tall and 1 meter wide.

Strawberry plants only get ~10 centimeters high but the berries can get up to the size of tennis balls.

Game is fairly accurate for red raspberries.

When I mark them on the map, I routinely mark them as strawberries lol