Some software is OK to install manually and natively, like Wordpress or Nextcloud, they require some things to get together but those two are just standard PHP apps after all.
But Jackett and Sonarr are software made of much more moving parts. And actually are quite badly packaged (if packaged at all). Their creators see manual install as ment mostly for developers while end user is expected to use containers.
Like other have said, learn Docker and Docker Compose (or overall containers). You'll be able to spin up such services with just one line (or with just simple declaration in compose.yaml file). But don't copy-paste, learn it because it's worth it.
If you really really get stuck, there also is Yunohost, a Debian based system with web GUI and one click install scripts for selfhosted stuff. But it won't be as nearly flexible and portable (moving between servers, having multiple disks, configurable backups...) like Docker, there is a reason why shipping server-grade software looks like that so don't be mad at Linux, because on other systems installing scalable, server-grade things would look the same :P.