Do Kaspa wallet managers track how developers spend released fund coins?

No — once coins are released from a Kaspa development fund, wallet managers do not track what happens to them. The source paragraph is explicit: their further fate "cannot, should not, and will not be tracked" once they leave the fund. At that point the coins belong entirely to the developer or development team to use as they see fit. For a beginner, this means the funding relationship ends at the point of release — the developer gains full autonomy and the wallet managers deliberately step back from oversight.