I'd argue you have plenty of time for this game. It's big, but it isn't filled with bullshit and doesn't waste your time. Treat it like playing pen and paper D&D. You can play a campaign over many sessions and possibly hundreds of hours spread out over a long period, but if it's time enjoyed it's time well spent. You don't need to sit down for an eight hour session. Just play for an hour or two and come back some other time. It'll still be there and there's no battle pass or anything to miss out on.

Most modern games suck because they treat your time like nothing. They have you doing bullshit quests and collecting meaningless items. BG3 doesn't do that. It treats you like an adult who can make their own decisions. It doesn't waste your time and everything you choose to do will be fairly meaningful. It is what gaming should be in my opinion.