Here's a more organized and formatted list of countries where YouTube doesn't display advertising.
Benin Botswana Burkina Faso Burundi Cameroon Cape Verde Central African Republic Chad Comoros Congo, Democratic Republic of the Congo, Republic of the Cote d'Ivoire (Ivory Coast) Djibouti Equatorial Guinea Eritrea Eswatini Ethiopia Gabon Gambia Guinea Guinea-Bissau Lesotho Liberia Madagascar Malawi Mali Mauritania Mauritius Mozambique Namibia Niger Rwanda Sahrawi Arab Democratic Republic (Western Sahara) Sao Tome and Principe Seychelles Sierra Leone Somalia South Sudan Sudan Togo Zambia
Armenia Bhutan Kyrgyzstan Maldives Mongolia Myanmar (Burma) Tajikistan Timor-Leste, Democratic Republic of (formerly East Timor) Turkmenistan (Note: YouTube may be blocked here, so this may not be an appropriate choice for VPN use.) Uzbekistan
Albania Andorra Kosovo Monaco San Marino Vatican City
Antigua and Barbuda Bahamas Barbados Belize Cuba Dominica Grenada Guyana Haiti Saint Kitts and Nevis Saint Lucia Saint Vincent and the Grenadines Suriname Trinidad and Tobago
Fiji Kiribati Marshall Islands Micronesia, Federated States of Nauru Palau Papua New Guinea Samoa Solomon Islands Tonga Tuvalu Vanuatu
Palestine Syria
Russia
AI says: This list is organized by region to make it easier to navigate. Keep in mind that the availability of YouTube ads can change due to policy updates or changes in local regulations.