5e warlock multiclass spell slots
Warlock Spellslots in Multiclass - Larian Studios forums
If you count them as separate classes and only use your highest one as "warlock levels" then you would get separate spell slots for Pact Magic multiclass allowing way more spell slots for a level 2.
Best Baldur's Gate 3 Multiclass Wizard Build
In D&D 5e (2014): Warlock Pact Magic spell slots are separate from the standard multiclass spell slot pool.
Modding:Working with LSX files - bg3.wiki
Accurate D&D 5e, 5.5e (2024) or BG3 Multiclass Spell Slot Calculator and more ... D&D 5e / BG3 Calculated Spell Slots.