Almaz,
Thanks for reporting this issue!
The issue with the inbox notes on the home screen not being translated properly is a known issue. It occurs if the site language has been updated after the notes are initially displayed. I will discuss this issue with the development team further so that we can consider improvements to this in a future release.
https://github.com/woocommerce/woocommerce-admin/issues/6063
For the issue of the strings on the marketing task screen not being translated properly, I will bring this issue to the development team’s attention so that it can be investigated further and fixed in a future release.