I had found some silver ingots. The top search result for "bg3 silver ingot" is a content farm article that very confidently claims you can use them at a workbench in Act 3 to upgrade your weapons.
Except this is a complete fabrication: silver ingots exist only to sell, and there is no workbench. There is no mechanic (short of mods) that allows you to change a weapon's stats.
I'm pretty sure an LLM "helped" write the article because it's a lot of trouble to go through just to be straight up wrong - if you're a low effort content farm, why in the world would you go through the trouble if fabricating an entire game mechanic instead of taking the low effort "They exist only to be sold" road?
This experience has caused me to start checking the date of search results: if it's 2022 and before, at least it's written by a human. If it's 2023 and on, I dust off my 90's "everything on the World Wide Web is wrong" glasses.