United Russia and current Russian government really love to go through the motions and put up a facade, as then their supporters have additional grounds to retreat to in their demagogy.
They can always say “Oh but look we counted the ballots it adds up!” and if you point at manipulations like these they can say “Oh but these were unique cases! We excluded them and the votes still add up!”
I’ve upgraded to Pixel 7 last year to run GrapheneOS. Honestly it was a very underwhelming upgrade. My 2019 Oneplus 7T is still kicking running LineageOS, could go back any second and not notice.