In some cases they could and in some cases they couldn't. For a particular example, in fintech development a bunch of formal ceremonies are non-negotiable, you need to track, document and query who ordered, developed, built and tested what and why and has a change request been formally approved by someone who has the authority to do so. In other cases, the formality is optional, but it's still a choice the organization has made.

However, in any case it's not a technical discussion about tools, that would be putting the cart ahead of the horse, it's about organizational change, which tends to be as slow and difficult as a rewrite of a technical product. If the organization chooses to have a particular process, then they'll switch tools if needed to support that process; and the fact that they could use a more conenient tool if they would choose less formality and less formality does not carry much importance, that choice is determined by other factors.