FCL 140 refers. The hours can be in either TMG or SEP to retain currency.
Do note the restrictions on the LAPL though. To make up for the lower hours to gain the licence, you are unable to carry passengers until you have flown 10 hours PIC post licence issue.
Also, post licence issue, you are restricted to the class and variant of aircraft you took the skills test in, until you have completed 3 hours instruction for a new variant, or a skills test for a new class.
The PPL(A) is less restricted in this way, needing simple differences training, and no restrictions on carrying passengers.
As above, not many people go through the LAPL in minimum hours. Most schools charge the same hourly rate for PPL and LAPL - if they are not it means their LAPL instructors are far less qualified than their PPL instructing counterparts.
If it were me, I'd just do the PPL(A) in the first place, as it is the foundation for every EASA licence and will be much more versatile in the future. I would only get an LAPL if that was the only licence I could get for medical reasons.