Don't get me wrong. We still engage in stupid bikeshedding about semi vs. no semi, tabs vs. spaces etc. but I feel overall we've embiggened our spirit when it comes to code style debates.
First, it’s not a real problem. The JS community is pretty much equivalent to any other of this matter.
Second, it’s not a big issue. Use a code formatter to make sure shared code is in the agreed style for whatever project you are contributing to.
Third, this does not affect your own code. You are free and encouraged to use whatever formatting convention works for your own teams. Just make sure it’s consistent and enforced.
Keeping consistent style is anything but a “silly rule” and it’s essentially no effort.
We really need to write an editor plugin/solution for this. Your editor should show the code in your preferred style, but saving it in the team's agreed style. And then a local-style.js for your own settings, and a team-style.js for the team settings. local-style.js in the .gitignore. Should be possible though?
The option you can do right now is to use something like Prettier where everyone's experience is entirely consistent and you have no cognitive load switching styles or dealing with inconsistency. This is basically free and means that there's a whole slew of high-emotion discussions which you can stop having for the rest of your career, in favor of working on things which actually matter. The older I get, the more that looks like pure win.
In my years of JS dev the main thing I've seen from the community is "pick a style and stick to it. Be consistent." And that's pretty typical and sage advice of all programming.
The reason to downvote parent is that it's bringing up a tired debate. We may as well discuss tabs vs. spaces while we're at it.