I am interested in becoming a qualified EU lawyer, i will graduate next semester from law in a non-EU country, however i am an EU citizen, my question goes because up to what i knew in Ireland you needed to have a bachelor degree in Irish Law plus a couple of years of apprenticeship, however i found this https://sisweb.ucd.ie/usis/!W_HU_MENU.P_PUBLISH?p_tag=PROG&MAJR=B300 which to my understanding says it qualifies you as a lawyer as long as you complete it. My intention is to do a masters to qualify either in Spain, Ireland, Italy or the UK, i have already checked and my undergrad degree in law is valid as an undergrad degree in all those countries and i speak the languages so if you have any information about qualifying in any of those countries i would appreciate the information.
Thank you.

Each country will have its own rules for those who want to practice law.

In Ireland, generally you will need to do a training contract, professional practice courses, and in-office training before being eligible to become a solicitor. It's a process that takes time.

Completing that LLM—or any other LLM—will not enable you to practice law in Ireland without going through the process first.

In those other countries you mentioned, each will also have its own process, but nowhere will a single degree alone allow you to practice. Here's some info on the UK for instance:

https://llm-guide.com/articles/as-uk-law-firms-enjoy-the-boom-times-how-can-you-become-a-lawyer-in-the-uk

Of course, you can apply for other jobs after your LLM, you just won't be able to practice law.