According to Russian aviation affiliated channel Fighterbomber, Ukraine's use of electronic warfare in the Kursk region is so strong, that UAVs are made completely useless (except fiber optic ones). And because of that, they have to resort to an oldschool way of reconaissance: binoculars. He also added that the use of glide bombs is difficult and inpractical in the Kursk region.
@whatisbetamax @noelreports You accidentally uploaded the untranslated image.
BTW thanks for your translations! :)