Although it is sad that you find it boring and common thanks to you, I learnt a new idiom. Cooking cutter: “(idiomatic) , (often disparaging) Looking or seeming identical; created by some standard or common means; often with the implication that the result is common, boring, or not applicable to all needs.” from Wiktionary,

So first of all I am a newbie on FOSS/Privacy/security issues therefore it’s better to double check but as far as I understand github Jira integrations as well as offline/selfhosting are optional so you are free to chose. I am snycing my tasks within the app via a nextcloud server. And it works well for me