I am presently CentOS 7.7 (with plans once the repos catch up to migrate this to CentOS 8).
(yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm)
I enable the 7.4 distribution in /etc/yum.repos.d/remi-php74.repo
I’ve installed this on a dozen or so servers, none of which depend highly on PHP (fog obviously does) without issue. However with all the deprecation going on/off in PHP - I do worry.