Irish and French. Irish was mandatory, French technically wasn't but most (all?) universities required (require?) a passing grade in at least one foreign language regardless of the course. Anecdotally in Ireland most schools offered French or German as a foreign language.
Granted this was all many years ago so the system may have changed since.
Why do you think everyone is using the term is wrong? Plenty of words get overused until they become meaningless but I have mainly seen enshittification used to refer to large companies significantly degrading their product in a bid to increase profits which is what I understand it to mean. If it's used a lot, it's because it's happening a lot (often by companies who built their products in the zero interest rate, infinite money era and now have to face the new reality).