BSGS is useless above 80 or so bits, and it's also impossible to scale due to the fast (machine local) table lookup requirement. Some people think that BSGS can scale after some dark magic nonsense, and that Kangaroo is the one that doesn't scale going up, but those people live in a different reality. Meanwhile all puzzles above 70 bits up to 130 bits were solved with Kangaroo-based implementations.

There is at least somebody who most likely is already far ahead in solving 135 by other means, his name is RetiredCoder. He's probably the reason why you may find it hard to find a cheap RTX 4090 instance for renting. The only reason no one else doesn't have much chances, despite having the software to do it, is because they aren't millionaires.