Multiple versions of Photoshop installed

[#1]

I have the following installed on my Windows laptop:

Lightroom Classic

Photoshop 2020

Photoshop CC 2018

Photoshop CC 2019

Camera Raw

I'm an amateur photographer taking vacation photos. I use Lightroom Classic the most, along with Camera Raw. Rarely use Photoshop, mostly to make phone lock screen backgrounds. Do I need all three Photoshop apps? If not, what should I keep? And will removing any Photoshop apps cause me problems with the remainder?

[#2]

I have the following installed on my Windows laptop:

Lightroom Classic

Photoshop 2020

Photoshop CC 2018

Photoshop CC 2019

Camera Raw

I'm an amateur photographer taking vacation photos. I use Lightroom Classic the most, along with Camera Raw. Rarely use Photoshop, mostly to make phone lock screen backgrounds. Do I need all three Photoshop apps? If not, what should I keep? And will removing any Photoshop apps cause me problems with the remainder?

[#3 · Accepted solution]

I keep old versions of apps until I'm certain I will never need them again to support a 3rd party plugin or discontinued filter.  But to answer your question, you do not need Photoshop to use Lightroom, etc... 

You may Uninstall all or none, your choice, with your CC Desktop App.

While you're at it, you might want to change your Preferences (gear icon) to turn off automatic updates.  I prefer to update manually when I'm ready.

Note:  Owing to Adobe's version policy, pre-2019 versions are no longer offered in CC Desktop App.  If you remove 2018, you'll never be able to get it back.

[#4]

Thank you for sharing your knowledge.

[#5]

Is it safe to uninstall all but latest version of Lightroom & Photoshop on my Mac as well?  Thank you for sharing your expertise!