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I'm not gonna lie, I totally feel you here as I have been a victim of just about all of this (except I-Phone anything - that's my other sister). And yes, Keurig now allows for third party cup carriages.
Along with HP, don't forget Epson and Canon. Although they allotted for the refillable ink, it was limited. And although you were able to use third-party cartridges at a lower cost, they ran out quicker.
As I love to monster things together, I keep as much tech as I get because I usually find another purpose for it. I only throw out stuff if I know it can be recycled properly....don't get me started on that fiasco as recycling is not all it cracks up to be regarding certain materials and localities.
It is no secret that the majority of everything in this world is about the money. Soon, we will have to start paying for clean air once someone finds a way to cash in on it without wiping out too much of the population so they can still make some money off of it. When COVID hit, I just knew we were about to move towards "Ultraviolet". 😆