It's a poorly designed chart, likely published this way so that it confuses the average reader and hides how bad the numbers actually are.
If you add up the year-on-year budget performance, the Jan-Aug 2023 budget performance is about 2.6 trillion rubles WORSE than last year.

The reporting tries to cover up these bad numbers by focusing on the surplus in June 2023 - the highest result since March 2021. However, the June result would not offset the deficit experienced in April 2023, let alone the Jan and Feb deficits.

There's even a hilarious typo in the news story where the author has stated "800 trillion" instead of the actual "800 billion" result, plus they mixed up the months - the 800B was in June, not August. They really should run these numbers past an analyst before printing the story, but I expect disinformation is the real goal.