They have no rights to prevent people modifying and using AGPL software however they want.
They should have no rights to control how people use hardware they bought. ToS for hardware should simply be unenforceable.
People should have full rights to adversarial interoperability, even if it means modifying proprietary software or hardware.
It always surprises me when people (on this site particularly) are more interested in the law as it stands than how things could or should be.
I wonder whether tech has become so exploitative partly because so many of us have lost track of (or never understood) how important civil disobedience has always been in the process of democracy and securing our rights.
As an individual you really don’t have to follow the terms of service! You certainly don’t have to support the [ab]use of ToS, DRM and related tech to screw you at every opportunity!
> They have no rights to prevent people modifying and using AGPL software however they want.
AGPL software can be used and modified within the limits of what the AGPL permits. People can do that with their Bambu software running on their own hardware.
That does not extend to using their proprietary BambuNetwork cloud service (somebody else's computer). The AGPL specifically mentions this scenario in section 6. There are open source alternatives to that like the third-party Bambu-Farm and bambuddy that people can self host instead.
Interestingly, Bambu's own initial approach to the AGPL was more in line with "modifying and using AGPL software however they want" (and potentially violating their section 6 obligations), until customer backlash forced them to adhere to the terms of the licence.