Etrecheck Report on 32 bit aps on iMac

I upgraded to Catalina a few days ago and everything seems to be running fine. (I delayed Catalina for so long as I knew I would lose iPhoto). But I had of course moved all the images to Photos although there may still be a bug or two to fix there.

I just ran the Etrecheck program just to see if it found anything of interest. It did find about 50+ 32bit apps - many (but not all) seem to be related to support for earlier printers.

Since Catalina won't run any of these apps should I just go into the Finder and Delete them all or should each be checked somehow to see if they should remain even tho they can't be of any use in catalina.

Thanks