Well Windows 7 was coming to an end on my good lady's machine and I installed FerenOS - the latest release based on Kubuntu and not the FerenOS Classic which used Cinnamon. I was able to transfer her ladyships favourite theme from 7 (Beach sunset themes, including the login sound of Seagulls calling and Tug Boat warning sounds!) Now considering it is an Athlon 3700+ processor, only 2 Gb (max MSI board will take) and an aging 256 Mb AGP fanless EVGA card I was well impressed. I chose the 'familiar layout' (Win10 look LoL!) and they are happy with it. Here is the desktop look on my login:https://zoringroup.com/forum/download/file.php?id=6722&mode=viewhttps://zoringroup.com/forum/download/file.php?id=6721&mode=view
Now on another family members machine which has an i7 processor and 8 Gb RAM and had Windows 7 64bit on it I had issues with the Calamares installer, no matter what I tried. I resolved the issue by running Zorin 15 in live mode, using GParted to format the partitions as needed, turned off the machine, put in the FerenOS disc on re-boot, started the Calamares installer and used the partitions created 'as is' for FerenOS:https://zoringroup.com/forum/download/file.php?id=6793&mode=view
I've also installed it on an old Dell Latitude D830 with only 2 Gb RAM also:https://zoringroup.com/forum/download/file.php?id=6730&mode=view
A 32-bit version is also available but the dev warns that support will end in 2023 or sooner depending on how Canonical are going to play this.
A major issue I had on her ladyship's rig was tearing - this was resolved in the main by using the Compositor Setting under Advanced in System Setting and changing from the default OpenGL 2 setting to 'xrender', removng animations and setting display to smooth as opposed to crisp. There are still issues with the System Settings menu when you scroll it does multiple blurs. One of the reasons I chose FerenOS over others, amongst other things, was Timeshift being present in it.