Post installation

I'm new to editing module's source code.

I know it is bad idea directly edit core php file.

I want to hide or modify the messages as below, that Layout-builder module outputs when saving after editing, because this warning/notification message confuse newbie admin who are using this module and it is possible they accidentally click a tag part, that is "Edit the template for all xxx content blocks instead", and edit that template instead.

You are editing the layout for this xxx content block. Edit the template for all xxx content blocks instead.

Re: youtube-nookie.com

I have been trying to research this on/off for a while with no success. It seems that it simply isn't a problem for other Drupal users, but it will become one for me if I want to share other people's videos.

I've tried the oEmbed Providers module in localhost, with its own list enabled, but it doesn't change anything. I started adding a provider manually, but I can't answer all of the mandatory questions such as the endpoint items.

I can't find these data on the web and an issue page for the module has only incomplete data.

I'm trying to create a twitter/X sharecard across my basic pages, but all the online support is from a pre-X era. Several metatags that seem to be vital have been deprecated. 

I've got the Metatag and Token module installed. I've configured my pages to have the relevant Twitter cards metatags, [node:field_image]. There is now no Page URL option, which seems to be used in every video/online help I've seen. So this didn't work.

I am updating from Drupal 7 to 11 and Rules 4.0. I cannot work out how to use the drop down data. It gives me an option of "@rules.current_date_context:current_date" and various other options but none of them seem to be acceptable when I enter them. 

I am trying to set a data value that returns the numerical number of the month for today's date (eg 9 for September)

TIA

EDIT: OK, I'll try to recast this question somewhat based on my ongoing research.

I would appreciate advice and instruction from anyone who uses Hostinger or is familiar with it.

So far, I have not found a normal person's guide to the above, so — thinking ahead — I asked the support chat bot how to update a Drupal site and it told me that I would need to manually replace all of the files in the file manager and run update.php.

I'm creating tutorial for admin pages. It should not be accessible by guest users. How can I achieve that? I couldn't find permission pane. 

I'm creating the page based on newly created contents type and block type, but it is ok to use other types if only default basic page or article page can achieve that.

Drupal 10, olivero subthemes

thanks