Like I said lack of proper commander panoramic thermal sight. If you are in a tank buttoned up you can't see much of anything.
And the lack of satellite assets means ISR from satellites, when it is available, won't be as up to date as what the US is providing to Ukraine.
The main difference here is the waste amount of "commercial" Western optical reconnaissance satellites. Russia has nothing like that. Thankfully for the Russians, the optical satellites are pretty much useless when there is heavy cloud cover and everything is covered with snow in winter. I have been looking at satellite pictures of Russia and Ukraine since late November. You can hardly spot anything. It is either covered in a blanket of white snow, which covers everything and creates massive glare, or there is heavy cloud cover which makes optical observation pointless.
There are also radar satellites, even commercial ones, these should also work with cloud cover. But the information you can get is a lot more limited. You can basically identify thermal sources or large objects.
The Russians do have combat lasers. Just not portable or cheap enough yet. I think the most success will be electronic warfare to counter drones and there are several such systems already in use.
