Can we Customize the Request Files upload screen inside sharepoint

hello john john Pter,

Thank you for explaining your requirements.

Based on the current SharePoint functionality, I can only find options to customize the branding of the SharePoint site itself, such as changing the site logo, theme, and header. These settings do not apply to the public Request Files upload page: Customize your SharePoint site | Microsoft Support

At present, SharePoint does not provide a built-in setting to replace the Microsoft logo, customize the page layout, or add your own text beside the default message on the Request Files page.

I agree that adding an organization’s logo and a custom message would help recipients recognize the request and feel more confident when uploading files. I therefore recommend submitting this suggestion through the official SharePoint Feedback Portal: SharePoint · Community

The Product Team is in-charge of the feedback site, and they are constantly checking the comments and feedback from our customer. Many features have been developed or improved based on users' comment.     

After submitting your request on the site, you can return here and paste the link into this thread. That way, other users who visit this discussion can click the link and upvote your request to help bring more attention to it.

Thank you for taking the time to share this suggestion. Your feedback can help the SharePoint Product Team better understand how custom branding would improve the Request Files experience for organizations and external users.

Kind regards,