Aluminum foil was never very good. But it has got worse as it had gotten thinner.

Used to be aluminum, as a material, was cheap but rolling it out very thin was relatively expensive. So foil was thick. And being thick it could be soft without worrying about people accidentally sticking a finger through it. This thicker and softer foil could folded and unfolded many times before the metal work hardened and cracked.

Now the relative cost of aluminum is higher and the cost of rolling it out, by the linear mile, is cheap. So it has gotten thinner. To get by with this thinner foil it has to be, to some extent, work hardened. Unfortunately being work hardened means that it can't be folded and re-flattened much before it cracks. Take it off the roll and use it once and that may be all it can handle.

Thicker commercial-duty foils, available at a restaurant supply shop, is almost as good as the old foil was. I understand the Teflon coated thick non-stick commercial foil is a bit better still.

Some people have shifted to stainless and titanium foils used for heat treating. These are reported to be reusable many times. The titanium foil is highly resistant to chemical attack and work hardening but you pay more. These foils are also much sharper than aluminum foil so it is easy to lay your hand open like your gutting a fish.