Installation And Unistallation Of Tomcat

I just installed the tomcat 10.0.12 using below command

$ mkdir /opt/tomcat

$ cd /opt/tomcat

sudo wget https://dlcdn.apache.org/tomcat/tomcat-10/v10.0.12/bin/apache-tomcat-10.0.12.tar.gz 

$ tar xvzf apache-tomcat-8.5.65.tar.gz

$ nano ~/.bashrc
and set the environment variabels in it which are
export JAVA_HOME=/usr/lib/jvm/jdk-17
export CATALINA_HOME=/opt/tomcat/apache-tomcat-10.0.12
saved the changes

$ . ~/.bashrc

$ $CATALINA_HOME/bin/startup.sh

then i runned http://127.0.0.1:8080 in browser it worked perfectly fine for me but when i checked that application for which i installed the tomcat 10.0.12 it said for now its not supported to use tomcat i have to install tomcat 10.0.10 so i unistalled tomcat using below command

sudo rm -rf /opt/tomcat

and installed tomcat 10.0.10 by making few changes in above code but when i runned http://127.0.0.1:8080 again the page shown me this instead of showing me this please ignore 8.5.05 cause i downloaded this image from another website which was providing tutorial to insatll tomcat on linux i think tomcat didn't uninstall completely and still running what should i do please tell me