I have a hook fixed to the end of a long landing net handle. If I get caught up on the far side of a snake lake I pull back as far as I dare, reach out, and wind the hook round the elastic to pull.
If I am snagged on the bottom and can reach the line I slide it down as far as I can towards the hook , twist, and pull. More often than not I get the whole rig back. I always get the float back, provided I can reach down to below it.