Inconsistent UI When Creating a New Page in SharePoint - dfficult to create a single part app page

[RafalUrbanski]

Target SharePoint environment

SharePoint Online

What SharePoint development model, framework, SDK or API is this about?

💥 SharePoint Framework

Developer environment

None

What browser(s) / client(s) have you tested

• 💥 Internet Explorer
• 💥 Microsoft Edge
• 💥 Google Chrome
• 💥 FireFox
• 💥 Safari
• mobile (iOS/iPadOS)
• mobile (Android)
• not applicable
• other (enter in the "Additional environment details" area below)

Additional environment details

No response

Describe the bug / error

When creating a new page in SharePoint, the user experience and available options differ depending on where the page creation process is started. This inconsistency affects the ability to create a page using the "App" template, as the template selection panel is not always shown.

Steps to reproduce

1. From Home Page

Go to the site’s Home page.
Click New → Page.
Result: User is redirected to the Pages Gallery.

2. From Home page Settings Panel

Open the settings panel on Home.aspx.
Click Add a Page.
Result: New page opens with a panel to select from templates or apps.

3. From Site Contents Page

Go to Site Contents.
Click New → Page or open the settings panel and use Add a Page.
Result: New page opens without the additional panel for template/app selection.

Expected behavior

• The process and UI for creating a new page should be consistent, regardless of where the action is initiated.
• The panel to select from templates or apps should always be available, so users can create a page using the "App" template from any entry point.

[Amey-MSFT]

Hello @RafalUrbanski,
Thank you for bringing this issue to our attention. We will look into it and get back to you shortly.

[Amey-MSFT]

Hello @RafalUrbanski,
I am trying to repro the issue, just wanted to know if, is the site using any customizations, third-party web parts, or scripts that could alter the New Page experience?

[RafalUrbanski]

Hello @Amey-MSFT,

No, I am not using any scripts or custromizations that could alter the New Page experience. I have been testing this behaviour on a brand new sites.
Only thing that I have installed is a webpart that is set to the full page app part mode and appears in the Apps tab while adding a page.

[Amey-MSFT]

Hello @RafalUrbanski,
We were able to reproduce the issue, and we are investigating it. We have logged this as a bug, and our engineering team will look into it.
Thank you!