ELI5, please, why a buck/boost module couldn't or shouldn't be used to regulate voltage of a solar panel instead of a 'charge controller' Charge controllers come in PWM and MPPT types, where would a buck/boost module fall in terms of efficiency?

Solar charge controllers

Topic		Replies	Views
Which charge controller & battery to use with DIY solar panel? General Electronics	11	2451	May 6, 2021
Solar power, little help General Electronics	7	2034	May 6, 2021
Buck Boost Converter problem General Electronics	4	4604	May 6, 2021
Solar battery charger problem. General Electronics	3	2323	May 6, 2021
Solved --- How to boost voltage from 22 to 25-26 volts? General Electronics	8	1949	May 6, 2021