Linear is gorgeous and satisfying to use, very aesthetically pleasing.

It includes Jiras killer feature, links between issues, across projects.

But...

It can't sync issues with github, it must fully be the source of truth for everything. This made it a non starter for us, we tried but it just can't work when not every piece of work by everyone is in linear. Even Jira allows sync.

It also didn't allow enough detail. For lightweight task management it was great, but when you have big discussions it was weak.

Github is great, but is missing issue links and better lightweight planning like tasks lists that auto update when linked issues update.

It’s been several years since I’ve used Jira so can’t give an honest head to head comparison, but my experience with Linear has been fantastic. Looks nice, has all the functionality I look for, enough customizability.

If you’re looking for something you can configure every little bit of for a very large team (like Jira) it may not meet your needs, but otherwise I highly recommend.