Has something new come along? It’s been so long since I’ve needed to do this that I assume CCleaner has enshittified by now.
Absolutely not. It was sold to a third party with nebulous privacy policy among other annoyances. Get you some Bleachbit.
Be very careful with Bleachbit, it’s very powerful and can ruin your system if you go too far cleaning. Ask me how I know 😂
How do you know?
More specificly, how did you break your system? What did you do? Did you “clean” your partition table or something?