How to show a 404 page without a redirect immediately if it is not there?

Question

htaccess

There is a page like /catalog/category/product/bla-bla redirected to a page with a slash. From this page, a page of the form /catalog/category/product/bla-bla/ is redirected and only then a 404 status is given. How to make it so that if the page does not exist, then without a redirect, give a 404 status?
Redirects are described as follows

RewriteCond %{REQUEST_URI} /[^/.]+$
RewriteRule ^(.*)$ https://localhost/$1/ [R=301,L]

RewriteCond %{QUERY_STRING} ^oid=(.*)
RewriteRule ^(.*)$ /$1? [R=301,L]

RewriteCond %{THE_REQUEST} /index\.php [OR]
RewriteCond %{HTTPS}       !on         [OR]
RewriteCond %{HTTP_HOST}   ^www\.      [NC]
RewriteRule ^(.*?)(index\.php|$) https://localhost/$1 [R=301,L]

Answer 1

there is no point in doing this, htaccess is a very specific thing and the subrequest will slow it down a lot.
secondly, again, I don’t know what time.
Both Yandex and Google look only at the last code, they skip the entire chain.
so if it's 301 301 301 404 then it's 404
but how to exclude a file from the index is a separate story, there are more than enough tools here.
I'm already honestly tired
of fighting with this hat

RewriteCond %{THE_REQUEST} /index\.php [OR]
RewriteCond %{HTTPS}       !on         [OR]
RewriteCond %{HTTP_HOST}   ^www\.      [NC]
RewriteRule ^(.*?)(index\.php|$) https://localhost/$1 [R=301,L]

do not invent a bicycle and crap yourself in one place.

Answer 2

htaccess is processed before dynamic code is executed. Those. the system does not know in reality whether such a page exists or not.