For example MSSQL supports only up to 20.04 version of ubuntu, zabbix too. I’m new to linux and installed last version of ubuntu instead of LTS one, don’t want to reinstall system because of it.
>Solution :
If it were super-easy and convenient to install a wrong-version deb package, everybody would do it. Your application would be supported on all releases of Ubuntu.
But it’s not.
It can be very, very hard in some circumstances to install a wrong-version deb package. You’re essentially asking "Can I install this airplane engine into my automobile?" If you need to ask the question, it’s unlikely that you have the skills to successfully accomplish the task anyway.
It is unlikely that you can successfully install and run your application on the wrong release of Ubuntu. However, it’s free to try. So go ahead and try. But be prepared with another plan if it doesn’t work.