Comment # 9 on bug 1227215 from Arjen de Korte

(In reply to Marcus Rückert from comment #8)

> /var/lib/php8/fpm/{,session/} php:php u=rwX,go=

Who owns the php:php user and group? Use of php8-fpm is not limited to nginx so
we must make sure this user is available if we need to store session
information there. In that case, php8 shouldn't create/modify these locations,
but the respective php variant used (mod_php8 and php8-fpm respectively. But
then it also means that we need to change the default group and user for
php8-fpm and make sure they are available.