File usage issue

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Greetings, I have an issue regarding file usage on my website. Here is the situation: I have used 4 scripts for my site, 3 of them are related to subdomains and 1 is for the homepage. WordPress and custom scripts are in place. After the installation was completed, it showed around 60k file usage. Once the content and files were uploaded, it increased to 70k. So far, everything is fine as I was already expecting high file usage and size. However, from now on, despite not adding any new content, my file usage keeps increasing continuously. I am not adding anything new or entering any content anymore. No changes are being made, and it is mainly used for profiles and introductions, with no section other than the blog being used in summary. Nevertheless, in about 2 months, the file usage seems to have increased by 10k. WordPress may cache files and open additional pages, I believe. Even if this is the case, it should clean itself up after a while. However, the situation persists. Do you have any suggestions? The file usage is increasing on its own. Is such an increase normal, and what should I do? I would appreciate it if you could provide some advice. Thank you.