Redirection of only home page to 404 not working

What is needed is that https://cpc.dev.company.eu should redirected to 404 page, and all other like https://cpc.dev.company.eu/* and app1.dev.company.eu & app1.dev.company.eu/* should work as it is.

in nutshell what i want is only home page of cpc.dev.company.eu should be redirected

<VirtualHost *:8080>
    ServerName app1.dev.company.eu
    ServerAlias *-app1.dev.company.eu *-cpc.dev.company.eu cpc.dev.company.eu

    Timeout 300

    DocumentRoot "/srv/www/app1/public"

    Header set Access-Control-Allow-Origin "*"

    ErrorLog "/var/log/httpd/app1_error_log"
    CustomLog "/var/log/httpd/app1_access_log" proxy


    <Directory "/srv/www/app1/public">
        Options Indexes FollowSymlinks MultiViews
        AllowOverride None
        Require all granted
        DirectoryIndex index.php

        # Rewrite rules
        RewriteEngine On

        # Code to block cpc home page

        RewriteEngine on

        RedirectMatch 301 ^cpc.dev.company.eu https://cpc.dev.company.eu/404?
        RewriteCond %{REQUEST_FILENAME} !-f
        RewriteCond %{REQUEST_FILENAME} !-d
        
        </Directory>

<FilesMatch "\.php$">
    SetHandler proxy:fcgi://127.0.0.1:9071
    SetEnvIf Authorization "(.*)" HTTP_AUTHORIZATION=$1
</FilesMatch>

SetEnv NEWRELIC_APP_NAME "app1 - dev"
SetEnv APP_ENV "dev"

not working

RedirectMatch 301 ^cpc.dev.company.eu https://cpc.dev.company.eu/404?

not working

RewriteCond %{HTTP_HOST} ^cpc.acc.company.eu [NC]
RewriteCond %{REQUEST_URI} ^/$
RewriteRule ^$ https://cpc.dev.company.eu/404? [R=301,L]

Works but along with home page of cpc.dev.company.eu the app1.dev.company.eu home page also redirects to 404 page

RewriteCond %{QUERY_STRING} ^$
RewriteRule ^$ https://cpc.dev.company.eu/404? [L,R=301]