If I DM, I would allow characters to have at least 16 in their main Ability score no matter the race, which in all is only 1 point difference (i.e. 1 Racial bonus point is removed elsewhere).
Tasha's Cauldron/WotC is too generous and just flushes the whole Racial bonuses.
I like the Racial Ability differences for heroic characters, but a tiny moderation is cool to allow, for example, a Drow Wizard 16 Int (+1 Int instead of Chr) or a Mountain Dwarf Paladin 16 Chr (+1 Str instead of +2, or Point-Buy 16 Chr).
Nb : some mods will allow this (site: Nexus Mods), but it could be a nice minor tweak for BG3 vanilla.
