The offered options when it comes to phones seem legit. But this framework thing does not, imho.
It's the exact same proprietary tech you get everywhere else. (You actually can't have an open system when running mainstream hardware).
And when it comes to the design of that HW it looks more or less exactly like some of the more recent Inspiron Dell laptops. If I wouldn't know better I would guess it's just based on some run-of-the-mine China design.
This proprietary extension cards also doesn't look useful. Same reasons for why the "brick phones" didn't work out.
All in all it looks fishy. Attracting easy money with some hype topic but not delivering on that for real.
I would be happy to see Raptor Computing Systems¹ build some laptops. Only that sadly there aren't any proper CPUs for that purpose… But it's currently the only desktop grade HW you can really trust. Anything else doesn't run without custom closed source firmware in the CPUs (Intel, AMD, and ARM are guilty, RISC-V doesn't have the needed level of performance until now).