The documentation page https://learn.liferay.com/en/w/dxp/installation-and-upgrades/maintaining-a-liferay-installation/updating-liferay uses Tomcat as the exemplified Application Server.
Additionally, application servers other than Apache Tomcat are not discussed but the principle is the same for maintaining any application server. See Installing Liferay on an Application Server.
Environment
DXP 7.4
Resolution
As stated in our compatibility matrix, these are the supported application servers:
