Corporate M&A can do many of those things already. They have cash. They don't need 'a fund' to do that ... and yet most corporate M&A is a disaster.
I wouldn't believe it until I saw it at a large company and then it all clicked and it actually makes sense.
M&A & VC teams are considerably more removed from the strategic impetus of companies than you might imagine - these are human organizations with a lot of individual self interest. M&A teams like making deals. They are opportunistic I find more than strategic ... which can be ok, but they find something cool and want to make a big thing out of it - but the product people in the company may not want them on board.
So company A acquires company B. Now what? Aside from new branding and T-shirts ... it takes a lot of effort to integrate these things. A new product that fits well into a product line, that does not need to be integrated technically, this might work.
Sometimes companies get bought because the CEO saw the website or met the CEO and 'liked him' and the product kind of makes sense. The head of M&A wants to please the CEO and goes gangbusters to make it work.
Legal, IP and financial due diligence are all the least important kinds of due diligence! Product and cultural due diligence are what matters, and they are weirdly not on the checklist - or not as intensely as they should be.
I think instead of VC, these companies should be focused in rigorous, objective oriented, well-managed M&A activity.
I don't even know who a good example would be - it used to be Cisco, I'm not sure anymore.