What is the difference between Query text and Refinement filters

[mvcsharepointdev]

I added the PnP Modern Search web part from this link @ https://github.com/microsoft-search/pnp-modern-search/releases . and inside the "PnP - Search Results" web=part, i have 2 sections; Query Text & Refinement filters, as follow:-

So what is the difference between these 2 options? and when to use each?

Thanks

[wobba]

See https://microsoft-search.github.io/pnp-modern-search/usage/search-results/data-sources/ (and KQL is not supported - docs will be updated). It's pretty much similar to adding the same expression to the query template. @FranckyC if you have a filter web part, should it pre-select manually added filters, if the value match? Or is it merely a FQL field?