Reports of its death are GREATLY exaggerated. I would suggest continuing to simply use firefox and disable any future crap you don't prefer.

That said librewolf which is intended to be firefox with stronger privacy settings by default that said

• Default settings break more websites
• You have to get extensions manually from for instance github because it doesn't use mozillas addon (it can probably be enabled)
• It doesn't use the built in password manager which is in fact privacy preserving so you have to enable it or use something else
• you don't get syncing via firefox sync which is in fact already privacy preserving so you have to enable it if you want it
• It doesn't remember cookies without manually adding an exception to each site this is extremely obnoxious. I'm sure its configurable though

At this time it is far easier to disable the few things that may be undesired from firefox vs turning librewolf into an acceptable option.