I haven't tried Linear, but my company uses Jira. It's abysmally slow. Not "there are too many tickets and it's hard to manage" slow, just the interface is slow. I opened an issue link in a new tab. It took about 7 seconds for the page to become interactive (able to click on the issue status and get a dropdown) and about 9 seconds for the loading to complete and elements to stop jumping around. This is in Firefox 78 on a Lenovo T480 with 8th-gen Core i7 CPU. Speed.cloudflare.com reports 28.5ms latency with 38.1ms jitter, 339Mbps down. Not a generally slow setup. At least in the case of Jira the interface speed is a huge issue.
Is there a site that lets you run performance profiles in browser developer tools and share the results? I could imagine that being really useful internally for devs troubleshooting and working with support.
It'd be harder to pull off as a way to shame poor performance because of the need to compare like with like, but I think it's needed to get the attention of folks.
Accessibility checkers are often rudimentary, but they are available to non-technical folks in companies and can be very effective at getting a conversation started.
