It depends where you are applying. FinTech and related fields will most certainly review background checks including contacting your college and verifying your high school diploma, criminal history and much more. This is not just best practice, these companies have a requirement to perform these steps and in some cases have B2B contracts and SOC1/2 requirements stating that background checks are performed on all full time employees and any contractor that has access to customer data.

It becomes more hit-and-miss in the other tech companies you mentioned as all the companies you mentioned have third party relationships with FinTech. Some departments will do all the same background checks and will otherwise do basic background checks that may catch lies on your college or high school statements and employment history.

TL;DR Just stick with the facts on your CV and do not volunteer too much information that may lead to more digging in the same spirit of everything dyingkneepad said.