Google, Microsoft, and others Are throwing millions of dollars at speculative fusion startups selling snake oil. Some methods (like mirrors, field-reversed-confinement, pinches, Helion) are clearly pipe dreams, and will never work. Tokamaks and stellarators may produce some neutrons, but even if the plasma physics goes perfectly, we are many years away from guaranteed disruption free operations, survivable first wall materials, real blankets (to breed tritium), etc.

Caveat emptor!

I am a big supporter of stellarators, the best potential fusion device, and publish Stellarator News. But all these snake-oil-selling startups have the potential to kill the whole fusion program.