I´ve to free space in hard disk drive and i notified double copies of all Adobe applications in hard disk drive (photoshop 2020 AND 2021 etc). All of these apps are over 1Gb and removing old ones could help me with my problem. Is it ok to remove/uninstall older ones? Shouldn´t that be automized?
You can make CC keep only one copy, but it's very risky. The idea is you try the new one and make sure it works effectively for you, and all your plugins work, and nothing you need was deleted. Only then might you delete the old app.