Your career growth is your responsibility, you can’t expect employers to care about it.
In general employers are looking for three traits when hiring:
(1) Can do the work (technical skills).
(2) Can get along with the team (communication and person skills).
(3) Can focus (1) and (2) on meeting business requirements and adding value.
Larger companies usually have hierarchies and processes in place to make sure (3) happens, so they are more interested in technical skills and their perception of how well a candidate can work with other people. The best indicators for those are previous work experience. Hobby/personal projects, bootcamps, coding competitions, and even college degrees are possibly proxies for the desired skills, but employers have learned that credentials and participation are not always good indicators.
As another comment mentioned, networking is very important. One of the main values of attending college is the network of people you spend 4+ years with. Bootcamps should offer that value, though I don’t think that’s the focus. Over time you will find that your network of former colleagues and friends leads to employment more often than your tech credentials. Someone vouching for you or referring you counts for a lot.
Rather than aiming for Google and tech giants like them, I suggest getting some on-the-job experience at smaller companies. Lots of companies that are not tech companies need programming skills, and they are going to care more about business domain expertise and getting along in the organization and a lot less about your ability to balance a binary tree on a whiteboard. A few years actual experience will give you more credibility than hobby projects and boot camps.
Don’t focus so much on tech skills that you ignore the personal and communication skills and domain expertise.