Polygon is going through some upgrades that you prolly missing and might be surprised from matic became POL for its acronym.
I'll quote the important parts of this upgrade but you're free to read the entire article for your reference which is also included on this thread.
It was a historic event where Matic was rebranded to POL which is a multi-chain ecosystem. The goal of this change was to enhance utility of its token, and allowing it to secure and power multi-chain based polygon networks. I have held holding significant amount of Matic coins now converted to POL, for many years hoping good return on my investment Given the fact that Polygon is a popular network with one of the lowest transaction fees chain. I am optimistic, that addition of new features to its ecosystem, POL will perform now and potentially make all time high (ATH) in the next anticipated bullish market.