GitLab issues are better for all but very large projects. Jira will win on features, of course, but unless you have 50+ people working on the same thing, multiple dedicated PMs, etc. you’re almost certainly not seeing enough value to be worth the frictional cost and temptation to divert time away from the product to build Potemkin project plans in Jira.
(This is the same failure mode as many Agile-as-practiced projects have: once the incentive structure is decoupled from results, someone will have a full time job moving tickets around in a way which is considered productive even if the project is foundering.)
