Wouldn't a tech company simply be a company who values technology as a differentiatior and therefore invests in building tech in-house? If so, I feel like Netf

Wouldn't a tech company simply be a company who values technology as a differentiatior and therefore invests in building tech in-house? If so, I feel like Netflix qualifies. For them not to be a tech company anymore, they'd need to pivot to only producing TV and Films, with outsourcing or licensing their work to a company that builds the technology to host and deliver the content to users on their behalf. I'm not sure Netflix would be doing as well if they pivoted to that. By having in-house technology teams that you invest in, it also means that the company is acquiring engineering and scientist talent, potentially acquiring tech patents, as well as building technological means that in-theory they could pivot to resell the tech or license it to others if they wanted, making tech not just something they invest in and use as a differentiatior, but making it an actual product or service they sell, this is what Amazon did for example.