It’s interesting, but it always seemed a bit too hacky for my liking and possibly prone to breakage. Eg seeing the compatibility table here doesn’t inspire much confidence: bedrocklinux.org/0.7/feature-compatibility.html
I also don’t like that it hijacks your host distro, it would’ve be been better if it was a bit more self-contained, like how Nix works on other distros. Feels like the mashup Bedrock does would be a PITA for troubleshooting (for instance, mixing binaries from different distros via $PATH is just asking for trouble). I also dislike that it uses FUSE to share resources between strata, given how inefficient FUSE is.
I think for most purposes, if you really want to mix-and-match distro features, a far cleaner approach would be to just use Distrobox.