Yes, absolutely.

I think it can feel pointless when it's just a few people or less. At that size it may just be easier and more effective to wing it, or keep a todo list.

However, when you start involving more people than you can talk to easily, the work starts to pull apart into an incoherent mess. For work to be well coordinated at scale, one person needs to be able to hand off to another person. One team needs to hand off to another team. If dependencies weren't done on time, you could have a whole specialized team that is missing what they need to be effective or on time.

At that larger scale you need something to keep track of who, what, when. JIRA, monday, spreadsheets --- in some ways it doesn't matter, but there needs to be management that did not exist and probably wasn't needed at the small scale.

As a developer that has worked almost exclusively in startups for the past 16 years, I have not once had to create or even look at a Gantt chart. Most organizations I encounter follow the Agile principles (at least in a loose sense), which emphasizes getting things done over upfront planning. That's not to say that no planning is done, but it's more and more common to see Kanban-inspired processes where work is prioritized into a backlog and then pulled by a developer when they have capacity to work on it.

Like I said, my experience is mostly in startups. YMMV.

I live and die by gantt charts. As an engineer, if I'm convincing my company to spend a quarter million dollars per year on a tool, the business folks want to see I can productionalize it within the year and onboard everyone or else I've thrown away the equivalent of a Lamborghini.

Gantt charts are one of the few things from those boring mandatory project management classes that actually show up in real life. It's a simple way to visualise project dependencies and timelines, the two most important things which anyone managing projects would care about.

All construction projects use them, nobody has found a better way to show dependancies of the many many trades.

yes