you will only have level 1 spells,
That’s shouldn’t be the case, though, no? Your spell slots will be increased with combined caster level, so while you won’t get higher level spells as individual class, surely a wizard could learn up high level spells? (Or is their learning ability tied to their wizard level, not spellcasters level?)
At least cantrips scale with character level, and frankly most of the time it is all I use anyway - Karlach does all the heavy lifting anyway.
