I have a network of 360 website on a multisite wordpress 5.4.9 :
PHP 7.4
Ovh Public Cloud b2-30 (30 Gb RAM, 8 vCore, 200 Gb SSD)
Debian 10.11
Plesk Obsidian 18.0.40
All sites are almost basic and simple, with no high traffic nor frequent updates.
I wonder if the server resources are enough to handle this network ! How can I check this ?