Wow. It's been a while since I used it. It's come a long way, this is excellent. At the time I chose fluent search with everything.exe file indexing and quicklook previews (all integrated), and it was really good. If powertoys can replace all that with one tool I'll be really happy. However, everything.exe will always be the only search indexer I ever use, the thing is just orders of magnitude better than anything else. So if command palette can't interface with that, it's a deal breaker.

I’ve been a user of Everything along with Keypirinha for a long time. The latter is very convenient for calculations, as a launcher, for currency conversions, and more. I even disabled Windows Search because it’s slow and not as good as Everything.

PowerToys has and Everything plugin