You can follow the bombings, for example: if Kyiv is being shelled (and reported in Russian media), it's not under Russian control. If the shelling last for days, the city is holding.
If some city was being shelled, but there are no more news about it, but the news are a nearby and further city is being shelled, the first city is probably under Russian control.
Following that kind of info, it seems the Russian invasion is crawling, and not running as intended. Russia is not doing much better (but not as bad as "reported" in Reddit, for instance).