End url in different languages

Hello, I have two questions:

1. Tell me how to configure the URL in different languages, so that it is not through ?lang=el, but as a full-fledged URL link - /el. examples:

FROM: domain.com/?lang=en
TO: domain.com/el

1. You can configure so that depending on the language of the browser, a certain language version of the site is loaded, for example:
   Who has Russian - the Russian version of the site
   Who has Ukrainian - the Ukrainian version of the site
   Who has any other - the English version of the site
   and if they go to a specific link with a language parameter (domain.com/?lang=el), then the language is not changed

Last edited 31 March 2023 by WebCet