Do you work at a well-established company? If so, do you think low-code tools are a good fit enterprise-wide speaking or only works to alleviate certain department needs?

Low code does not mean low complexity. I know one multi billion dollar company running a massive global business on a low code platform and that is me example. Low code and complexity should not be conflated.  This tech works wonders IF you want it to work.  

Huge Company - 100+ years old, 100k employees -

One significant challenge associated with low-code or non-IT code tools lies in ongoing support. While these tools offer short-term benefits, the business community often has a clear understanding of the specific assistance they require and what functionalities the solution should offer. However, they may not be particularly interested in providing ongoing support themselves. Consequently, when the business user who initially created the application or function either transitions to a different role, loses interest, or leaves the company, the expectation is that IT will assume the responsibility of supporting and developing enhancements and changes.

To address this issue, it is crucial to establish a rock-solid agreement with the business stakeholders. Before enabling such tools, it is essential to ensure that the business acknowledges and takes ownership of the sub-application support and enhancement responsibilities, unless they are willing to allocate budget to IT for this purpose. It may sound trivial, but documenting this agreement in writing, such as through a service level agreement (SLA), is highly recommended. I have personally encountered situations where I had to refer back to a signed SLA during discussions with business leaders who claimed they never agreed to support the sub-application. Presenting the signed document in a private setting helped resolve any misunderstandings, albeit resulting in a few awkward moments

I am the Founder and CTO of my company and I think low code tools are good fit for all companies. Although it depends on various factors such as the complexity of business processes, the level of customization required, and the technical skills and resources available.