Some files are not writable by WordPress – Ubuntu

Hello everyone,

I installed a new system Ubuntu 20.04 LTS and upload the previous wordpress that I had on the previous system. So I transferred the database and files to the new server. The previous system was Centos 7.9 & Centos Stream 8. Now I have problems with wordpress which requires floder permissions. I have found a solution in which I need to allow and permission through SSH but there is still the same problem, can someone help me what specifically I need to do?

Commands I used:
sudo chown -R www-data:root /path/to/wordpress/
find . -type d -exec chmod 0755 {} \;
find . -type f -exec chmod 0644 {} \;

Error Some files are not writable by WordPress:
xmlrpc.php
wp-blog-header.php
readme.html
wp-signup.php
index.php
wp-cron.php
wp-config-sample.php
wp-login.php
wp-settings.php
license.txt
wp-mail.php
wp-links-opml.php
wp-load.php
wp-includes/class-wp-user-query.php
wp-includes/l10n.php
wp-includes/date.php
wp-includes/php-compat/readonly.php
wp-includes/class-wp-oembed.php
wp-includes/images/w-logo-blue-white-bg.png
wp-includes/images/blank.gif

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