I cover this a bit in a previous article: https://erik-engheim.medium.com/nuclear-vs-solar-power-can-we-have-an-honest-debate-ad3eba95d9f0

Fusion development is getting real exiting, but my opinion is that fusion is unlikely to be a silver bullet. Like current nuclear reactors they will likely be large and complex. Large and complex equals high cost.

We may have a working reactor in 10 years, but it would take another 10 years to make the technology cheap. Perhaps we will never be able to make it cheap.

The real opening for fusion power IMHO is as a way to handle intermittence from renewable energy. Thus one could imagine a future where most power is produced by wind and solar but where fusion serves as a sort of battery, producing power when solar and wind isn't.