[grishka]

It's very rough. There are GPS jammers in Moscow Kremlin, but they only affect the area maybe 1 km around red square. It has practical consequences of taxi apps freaking out when you pass this area. This map shows the entire Moscow, and a huge area around it, in red.

[tazjin]

Jamming is not only near the Kremlin, but also in large parts of Хамовники, near places like Лужники, ЦСКА (because of the mall & stadium), Лубянка, Сити and so on.

Since this data is reported by airplanes I wonder if they experience more jamming because the jamming signals distribute easier upwards than through the jungle of buildings in the city.

[sidewndr46]

I am guessing those places have jammers to prevent the attack by GPS guided munitions?

[grishka]

Problems with GPS around Kremlin existed way before the war and I experienced them myself. Didn't know about the other places because last time I've been to Moscow itself (not the airports) was several years ago.