Once can have a lot of difference between the use of Mac OS Catalina and Mac OS Mojave. You are not restricted to use either of the Mac OS in place of the other since the difference is not that much. You can install either Catalina or Mojave is you had one initially because of that. The best things about Mojave is that you can have the support for the older Mac pro models. You cannot use metal cables to help more former Mac pro model in Catalina. After the upgrade of the software that has a 32 bit processor, you cannot use in Catalina, since it does not support 32 bit programs. Mojave was the last ma OS that has a 32 bit architectural design that developers were advised to do some update on their software. The fact that Catalina uses 64 bits architecture makes it be the best thing about having one. Despite the fact that 32 bit processor is obsolete, you need to consider taking an app that has a 32 bit processor to the next level.
Update to 64 bit processor is the best thing that you can do since your performance increases and your RAM can be up to 4GB as opposed to 32bit processor. There are some things that you need to consider first before you move to Catalina. The first thing that you need to do is to confirm the Mac OS for 32 bit applications. The next thing that you need to do is to allow the past be gone. If there is an application that has a 32 bit structure you wat to use them, you can look for any available upgrade.
You need to clean your Mac pro by uninstalling all the 32 bit applications when you get the best upgrades. Mojave keeps all the media in iTunes like all other old Mac OS. Due to some simple reason, iTunes in Catalina is divided into three different apps. The division of iTunes into three different apps is because one iTunes app carries more than enough. When you upgrade, your medial get to move automatically to their respective iTunes apps.
You get to have the best workflow due to the availability of dark mode that adjusts the display of the desktop with the help of Mojave. With the help of stacks, you can have a better file management system in Mojave. Due to the expand of the workspace, you get to have the best experience with Catalina than in Mojave since you have a healthy Mac life balance.