Early U.S. and Nato intelligence on Russia's intent and mobilisations leading up to the 2022 invasion of Ukraine made clear the overwhelming effectiveness of these capabilities. I've commented on this previously: <https://news.ycombinator.com/item?id=31480538>
The flat-footedness of Russia's response to the nearly two-week-long incursion of Ukrainian forces into the Kursk region of Russia speaks to exceedingly poor capabilities or utilisation of remote-sensing, signals, and human intelligence by Russia.
From a discussion elsewhere, apparently Russia's surveillance satellite resources are limited and highly aged, which may explain at least part of its poor showing here.