I wouldn't recommend deleting all cookies all the time. While true, it does make more private, but relogin into all the sites all the time is a pain.
While while listing is good, I'd recommend a separate "burner" profile that essentially reset itself on closure, with all the privacy options activated.
Then, you can have a second profile you can use when you need to be logged in.
I literally have librewolf open on profile switching so I can easily have my reinforced profile ready to go.
True, but it's also to leave websites I visit regularly cookie -less by default. Want to watch a YouTube video that someone sent you? No need to be logged in.