Prefetched tags (On demand resources)

Hello. I'm trying to make the ODR experience as seamless as possible while reducing the app bundle size same time. According to the documentation, the files associated with the tags placed in the prefetch tag order section should start downloading immediately after installing the app, but my observations show that the resources behave like it's associated with on demand tag. Assuming: I expected that at least few first resources in order will be ready after 10-15 sec after installing and accessing these resources through conditionallyBeginAccessingResource() will return success almost immediately, but it's not. Anyone faced this behaviour? Does this technology is still actual for 2022?