She "disappears" a lot.
Here's a 2020 story along the same lines:
'KREMLIN'S FIRST MISTRESS' Mystery of Vladmir Putin’s vanishing Olympic gymnast ‘mistress’ Alina Kabaeva after ‘having his kids’ [Published: 22:30, 14 Oct 2020]
Patrushev is going to deport the deceased Putin’s Muslim concubine / baby mama back to her native Uzbekistan.