Is there a concept of prepared spells for clerical sidekicks in D&D 5th edition? [closed]

Is there a concept of prepared spells for clerical sidekicks in D&D 5th edition?

Сan Acolyte or the same Spellcaster Sidekick with clerical flavour know more spells than they do according to the "known spells" in Unearthed Arcana (UA) description? As much as Cleric: prepares a lot uses a little.

In particular, Acolyte has a class of Spellcaster, at the start he has a list of known spells (3 of the 1st level) and slots (3 of the 1st level), but the Cleric with the same abilities and with the 2nd level (according to UA) must have 6 prepared spells and 3 1st level slots.