Don't forget that Mojave can do ugly things to 32-bit apps. Unfortunately I have several of them installed including the Microsoft Office for Mac 2011 suite.
You can determine which of your Mac apps are 32-bit by doing this:
- Click the Apple icon in the upper-left of the screen, select About this Mac.
- In the About this Mac popup, click the System Report... button.
- In the System Report... window, click Software -> Applications. (This will eventually display a list of apps, but it will take a while to generate it, so be patient.)
In the System Report... window, the last column named 64-Bit will indicate which apps are 64-bit and which are not. If it says "Yes" in that column, then it is 64-bit. No means that it is a 32-bit app and there might be issues running those in Mojave. You can sort that column clicking on the name "64-Bit" then scroll down to view all the "No" apps. Personally, I have too many 32-bit apps to risk using Mojave.