The title is wrong. The money is not taken from the russian assets but rather interest earned from those assets. The original assets are left intact. FTA:
The European Commission has disbursed an additional 1 billion euros ($1.1 billion) in Macro-Financial Assistance (MFA) to Ukraine, to be repaid with proceeds from frozen Russian assets, the commission announced on March 20.
It there ANY reason that a ghost fleet exists other than avoiding EU law?