Assess Performance Needs: 99% of apps are not going to notice the difference, so you choose React
Team Skills and Learning Curve: Everyone knows React, nobody knows Qwik, you choose React
Scaling and Cost of Ownership: Immaterial
Ecosystem Fit: React has the more full and stable ecosystem, you choose React
On top of all this, all the AI tools have good capability with React - defaulting to it themselves - and engineers are increasingly expected to make significant use of AI tooling.