Maybe Slimbook? I haven’t bought one yet but it’s definitely on my close watch.

https://slimbook.es/en/

I believe it’s using a feature built-in directly in the filesystem.

I’m just curious if it’s possible to browse individual snapshots like in MacOS Time Machine and fetch individual files out.

As much as I’d love to, they’re simply too expensive, by far. Amd I’ve had several Sony’s compact models before that have each left me with a malfunctioning screen after about a year.