Also in my eyes Krita 5 is worth a look, but you should make some preparations.
Therefore, I ask you to make sure to back up your settings files and your resource folder before installing Krita 5 beta versions, it probably would be best to read @tiar’s hints on backing up this data >> Before you start (how to back up things).
A backup is a good way to don’t let something unexpectedly go wrong without having a cure in background and turn your test into a negative experience, that would be a pity.
For testing, I recommend using the portable versions (the ZIP versions on Windows, AppImages on Linux, for Mac’s I don’t know if that is a portable Version sorry). This is the direct download link to the current Beta 5 for Windows, and this one is the AppImage-Link.
That is all.
Michelist