yes, on the bottom of the canister there is indeed the code you describe. there are numbers 2 and 5 and they are separated by an arrow. the arrow points to number 12. so 12/22/2025 is the year of manufacture?
I saw these posts, but none of them match my code form. I googled for about an hour and then gave up because I only found conflicting information and nothing I was 100% sure of.