I do not honestly think that USA or Western investors will be going into setting up the facilities en masse for the extraction of recycled gallium and germanium from old computers, washing machines, solar panels and smartphones. It is too costly and knowing the end items are competing with China. If they really do that, well it is up to them to throw good money after bad.
The wholes process of even trying to extract those rare earth minerals from the ground is already a huge challenge. What about the setting up of the refining logistics to make those rare earth raw materials into useful metals? The investments to do that are not puny, coupled with the environmental effects it will cause to the country doing that.
The USA is trying to be chummy towards Vietnam to come together to allow them to extract Vietnam's rare earth deposits, ranked second in the world. Who wants to fund the setting up of the facilities to do the job and will they be competitive enough to rival China? Do the Vietnamese trust the USA again, the destructor of their country and killing millions during the Vietnam War?
The USA even tried its luck with Mongolia and found the idea unfeasible, with China disallowing its ports to be used to ship the ores to Japan for refining. There was even talk of lifting the ores by air to Japan, but that was also impossible, having to fly over Russian and Chinese airspace. China and Russia will not allow that to happen. Mongolia had to eat humble pie after that and tried to be chummy to China.
As I said before, time for China to fully weaponize its control of essential raw materials for National Security reasons. National Security reasons is one excuse that is now a very useful invention for mankind, LOL.