I didn't specifically try Foam but I'm playing with note taking systems for ages now. Dendron beats all others (even Emacs!) for my use case since it's the only one that allows me to find notes later in an easy way due to the hierarchical structure and lookup as a first class citizen. Not sure why but it's wy better than grepping. Schemas and templates add to this for structured note taking e.g. for meeting minutes, daily notes and others