Module development and code questions

Drupal 8.8.5
I have read various information on how to be able to view the label and then the input field when entering the variation (Form View Management)
Currently the form displays the date field in this manner.
Date
__ / __ / ____

I want to visualize it in this other way
Date __ / __ / ____
I have done various tests but I have not succeeded.
I saw that in View Manager you can choose the inline option for viewing.

Is it possible to insert?

I´working with Views module. I`ve created a bootstrap table to group my contents and their fields, but I need to group the table by a field of the reference entity. I´dont know if I am explaining well. For example:

I have a content called Competition that has a field called academic year (number).

I have another content called Sport that has a field of entity reference to Competition.

I´ve created a table with:

Sports              Competition           Field        Another field             Options

The other day I was installing some different modules and suddenly I started getting these messages ("You have viewed this node 3 times this session.")  every time I visited a node, and I don't know how to remove them.

Does anyone know anything?

Hi, I am trying to add a new translation to an existing node through the REST services.

I have a website that has content available in multiple languages. Two of those languages are "en" with prefix "en-INT" in the URL and "de" with prefix "de-DE". The content is always available in "en" and then I would like to add translations to the "en" node.

I have tried a PATCH call to /de-DE/node/62 with the following body:

I need to change menuitems dynamically on a custom menu created in Drupal.
I need to show, hide, alter title etc, depending on each user and some other different conditions.

I have tried to use:
HOOK_menu_links_discovered_alter(&$links)
HOOK_preprocess_menu(&$variables, $hook)

And they both let me manipulate the meny. But only once when I empty cache. After that it ignores any further changes.
(For me it strange that preprocess_menu doesn't run on every request.)

Hello,

We're using a YouTube module to insert youtube video's on our website. The module currently allows the following URL formats: