Mike Wuerthele, AppleInsider:

Russia’s lower house of parliament passed legislation in November 2019 that makes it mandatory for devices such as Apple’s iPhone that feature apps to include pre-loaded Russian-made ones. The legislation threatening the ban encompasses smartphones, computers, tablets, and televisions.

And:

Tass isn’t yet clear on the reasons behind the postponement. The delay may be technical, but is more likely related to the COVID-19 outbreak that is complicating device production and development at the moment.

Not the best time to hinder technology that allows people to communicate. The postponement makes a lot of sense.