UK MOD publishes today's maps on the extent of the Russian advance and situation update. Sounds like combat units overextending the supply lines and leaving supply units vulnerable is slowing the advance significantly. Based on current troop movements, looks like Putin's objective is to fully take Ukraine and not just cut off Ukrainian access to the Black Sea. Though his plans originally called for a removal of the Ukrainian government in the first 48 hours of the war, so far the Russian military has lost huge number of lives and not really managed to achieve any of their major tactical objectives.
https://twitter.com/user/status/1497639083337822212
https://twitter.com/user/status/1497592156738965509
https://twitter.com/user/status/1497714109521043462