Like you I tend to agree that the effort delivering front end projects often seems to outweigh the value added over recent years. I can think of half a dozen projects I've seen over the last few years where the effort teams put into figuring out stacks of new tools was an order of magnitude greater than the value added (and most of the projects failed to deliver or became haunted forests soon afterwards which is even worse!) It's not sustainable, businesses are wasting far too much money and too many talented developers are left feeling inadequate.

The most important thing in any organisation is to ensure teams are setup to succeed - that means they're using tools which enable them to work efficiently, ship easily and reliably, and their work can be maintained in future.

With that in mind, my advice would be:

1. Ensure there is a process where new tools are scrutinised by peers. I always push developers and teams to explain their tech choices in terms of the value added and often as we dig into this together the justifications melt away. Asking for a timeboxed proof of concept can also be effective - battling toolchain woes and trying to manipulate tools into solving the problems a team actually has often helps lead to better decision making (think https://boringtechnology.club/)

2. Try to work in organisations where developers can be close to their users and are empowered to suggest new features and self serve analytics data. Teams able to build empathy with their users and are motivated to solve problems for those users are more likely to favour choices which provide value quickly - this is a big nudge towards making simpler choices.

3. Give developers space for learning and experimenting. Whilst tempting, picking up a suite of new tools to deliver each new project is a really crap way to encourage self development because those new tools will more often be a big distraction than a force multiplier. Many developers are highly motivated by trying out new tools and frameworks, and some of those might lead to something great in future, so give developers the time and space to try them and make sure their learnings are shared with the team to help level them up too.