After using 9 type of ad-blockers add-ons (all at the same time) and having between 96% and 98% score on several Ad Block Test pages, with AdGuard AdBlocker (being the 10th add-on) I got the 100%. The good old days of using only 1 add-on for something are gone, but at least this one does the work (one just had to configure it in "paranoid" mode).