I took the time to google it for you. You're welcome.
Yes, in Diablo 2: Resurrected, Magic Find (MF) does influence the Find Item skill used by Barbarians. When you use Find Item on a corpse, the game runs a second loot check influenced by your MF gear, increasing the chances of the extra items being Magic, Rare, Set, or Unique.
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Arreat Summit
YouTube• 29 jun 2022
How it works: When Find Item is used, it acts similarly to a monster kill, performing checks in this order: Unique, Set, Rare, then Magic.
Best Strategy: It is highly effective to have high MF gear on a Barbarian to maximize loot from killing a boss and then using Find Item on their body.
Limitations: MF does not increase the number of items found, only their quality, and it does not affect Rune drops.
Diminishing Returns: While helpful, keep in mind that high amounts of MF (e.g., above 300–400%) have diminishing returns, as noted in this Blizzard Forums post.
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Google is wrong half the time. According to Google, you can also make an Insight in a stalagmite staff.
Yes, you can make the Insight runeword in a Stalagmite in Diablo II: Resurrected.
Here are the details for making it:
Base Item: A 4-socket Stalagmite (a type of Long Staff)...