I like parcel a lot, but one issue I've always had is that it watches your node_modules folder. The devs kind of pawned it off as a "feature not a bug"[1], but it results in tons of warnings etc related to watching too many files. I've since started using a symbolic link to the actual node_modules folder, but it's still just 1 extra hurdle that would be nice to not have.
[1]: https://github.com/parcel-bundler/parcel/issues/1557#issueco...