I hate how that's the language everything is slowly converging to. Even if you don't work on websites, you always have this fear in the back of your mind that one day your project will be infected.
It's not even easy like people claim it is. I find JS significantly more difficult than Java because there are way more things that can go wrong and troubleshooting is way more frustrating. Just because the app will launch even with errors in the code does not make it easier in the long run. Compile time errors are good actually.
Js is indeed painful. I find the right approach is to simply treat it as a compile target. I've worked with ClojureScript when I had to do front end work, and I find it's a huge improvement because it has sane language semantics. You have things like proper equality, comparison by value, immutable data structures, and so on. It's not perfect because you still have to deal with stuff like source maps to get errors out of minified bundles, and you have to interop when you deal with Js libraries, but it's a huge improvement overall I've found.
Jira would be okay without needless amount of plug-ins, extensions, and dumb workflows one has to follow. Accidentally put it in the wrong state? Enjoy writing to someone who can fix it. Besides, it is slow as fuck and is getting slower with all the tickets (over 80k on our instance) it has to track. Search is shit, and it is shoving AI in my face on every step.
Plain Jira is not bad. In my second company that I work for, I set up OpenProject and it has been working flawlessly for about 5 years already, it can easily track GitLab commits, branches, and merge requests, and do basic time tracking. It has some nifty features like "budget users" when you want to do budgeting with a "ghost user".
Perhaps Teams has changed, but in the past I personally found it more efficient for text communication because it forced everything to be a thread. With Slack there's too much variety (messages & threads in channels, direct messages, huddles, canvases) which consistently leads to visibility and findability issues since everyone uses it differently. Though I understand technically they're very similar and the emphasis is mostly visual