Ads and trackers are gone before the page arrives.
Ghostery filter lists run inside the app from the first page load. There is nothing to install and nothing to set up.
Nook blocks ads and trackers before a page loads, opens articles in a reader view, and can hide its own toolbar. There is no account, no sync, and nothing sent anywhere.

I would open a page to read one article and get a cookie banner, a video that starts on its own, a sidebar I never opened, a prompt to sign in, a prompt to sync, a new AI button. The article was in there somewhere.
Nook is my answer. It is small and it stays out of the way. It has a tab strip, an address bar, and four buttons. That is the whole interface, on purpose.
Ghostery filter lists run inside the app from the first page load. There is nothing to install and nothing to set up.
One shortcut and the page is reduced to its article. Everything else is dropped.
The tab strip and toolbar slide away. Move the mouse to the top edge and they come back for a moment.
Behind the menu button. Bookmarks are saved as a plain file on your Mac; history is kept only while the app runs.
Drag to reorder, mute the one playing sound, reopen the one you just closed, jump by number with ⌘1 to ⌘9.
⌘F finds a word and counts the matches as you type.
Cookies and cache go when the app closes. No account, no sync, no telemetry, no crash reporting.
Free. A universal build for Apple silicon and Intel Macs, signed with a Developer ID and notarized by Apple.