Under Joomla 1.5, I had found an excellent way to put together my websites. Once set up, adding new content is easy; no messing around with menus having to be extended every time I added new content. A big range of thirst part extensions were available. And one of the supplied templates "JA Purity" provided a layout I liked.
Upgrade to Joomla 2.5 has been a nightmare. Several extensions I used were not supported; some of those that were I had to re-enter all of the content because the upgrade process didn't work; and my template was no longer available.
Enter "Artisteer": a program that lets you create a Joomla template with no coding or design skills needed. Simply take a starting point, and change the parameters until it looksvlike what you want. Result? My template is now very close to the original that I liked and it took maybe 30 minutes. A truly excellent product!
From Joomla 4 onwards, I wanted to get away from things that needed update as Joomla updated. I've reverted to using the "as supplied" template, and accepting the appearance. With the upgrade to Joomla 5, no change was needed.