LibreWolf is just a fork of Firefox (one of many) which tries to improve its privacy features.
I am not asking anyone to use this, just merely offering an alternate option. Everyone who accesses the internet has used a browser. What makes a difference for the average user is the GUI and UX.
If you use vanilla Firefox and don’t tweak the settings, often your DNS will be resolved by either Google, Cloudflare or your ISP.