Make Laravel Application able to show in different designs. Exchange logo / Header / Footer

We have the following situation.
Laravel page that has a fixed layout as of now.

There is a content part of the Page and a Header and Footer.
see Image.
1 is a Logo, 2 is a String both in the Header section
3 is a Footer

We need to be able to hand over a parameter with the URL the page is called
that Url currently is
https://www.xxx.ch/login
https://www.xxx.ch/login/123456789/AABBCC

xxx will be the page. Anonymized here.
123456789 and AABBCC are used to directly login on to the page over a QR

once logged in there are several subpages
https://www.xxx.ch/violation/home
https://www.xxx.ch/violation/transfer-fine
https://www.xxx.ch/violation/transfer-fine/process
https://www.xxx.ch/violation/file-appeal
https://www.xxx.ch/violation/file-appeal/process
https://www.xxx.ch/violation/online-pay

one page is also possible to access without login.
https://www.parkcheck.ch/faq

now we want to hand over additional parameters on calling the page.

e.g. ly=12 for Layout=12

https://www.xxx.ch/login?ly=12
https://www.xxx.ch/login/123456789/AABBCC?ly=12

based on that we want to change Logo, String and Footer.

all the "subpages" will then use the called layout.

so that means when I login on the page with
https://www.xxx.ch/login/123456789/AABBCC?ly=12
and then move to page
https://www.xxx.ch/violation/transfer-fine it must stay within ly=12
i don't care if this is displayed as https://www.xxx.ch/violation/transfer-fine?ly=12 in the browser or not.

https://www.xxx.ch/login/123456789/AABBCC?ly=13 would therefore show a different logo and so on.
We will provide those Logo, String and footer content each in a dedicated folder under the path we use it.

$ly=xx is just an example. Probably works also with /ly=xx or /ly/xx
In case nothing is found for ly= then it will fallback to current template