I’ve uninstalled Analog Lab 4 but only because I also own the V Collection & any ‘legacy’ presets (i.e. presets from the pre-updated instruments such as the Jup-8V v3) can be imported. As such my preset number is over 9000 since it includes all V Collection presets.
However if you don’t own the V Collection it’s worth noting that the number of Analog Lab presets has reduced a lot from 6500 to 2000. Hence Analog Lab 4 has much more presets! I’m not sure if as a previous Analog Lab 4 owner you can somehow import the v4 presets but I doubt it.
Before I uninstalled v4 I did try them both in parallel & they worked fine. So if you own V Collection then probably worth uninstalling, if not then no harm in keeping it.