when i use ppa to remove unoffical kinetic it still E: release no longer has a release fileWelcome to the forums
so only way is reinstall right ?I am not directly answering your question, but Ubuntu 22.10 reached the end of its life July 20th 2023.
23.04 will reach the end of its life January 2024 - so you will only have a few months left of it.
They are both "Standard" versions
Unless you have a need of "shiny new things" you would be better to use LTS (Long Term Support) versions. They have a much longer life, and you can update from one LTS to another. Currently, 22.04 LTS will reach the end of its life April 2032
when i use ppa to remove unoffical kinetic it still E: release no longer has a release file
I would tend to agree with many of the above comments. Ubuntu's release cycle, in particular, is an odd one.