Pokrovsk-Dobropillia directions. Current situation with DS frontline data and own fortifications.

The Russians continue consolidating their breach of the first obstacle line after Pokrovsk, in particular around Shevchenko and Bilytske.

As reported by many sources already, me included, the resources the Russians are committing here are truly massive, and they don't feel much of their catastrophic casualties, which enables them to keep their pressure.
That said, such obstacle lines still work if they're in the red zone (but also if they're in the blue zone to some extent), as Ukrainian FPVs can still fly there and exploit them to eliminate Russian infiltrators.