I’ve been doing the Smaller knife + smaller multi tool carry for quite a few years now. It’s worked decently well.
Opinel is certainly a knife that cuts really, really well. Outcuts many more expensive options imho. Downsides: You lose a bit on ease of function with the lock ring. It looks like a kitchen knife instead of a pocket knife. It’s not USA made. It’s round handle sometimes doesn’t like some pockets. It’s a thin blade, so you’re not really thinking of prying or using it for non cutting tasks.
Swiss Army Knives (victorinox) are certainly multifunctional and very handy for numerous tasks. Blades cut very well after sharpening, but don’t hold the edge as long. However, the other tools allows you to save the blade for ...actual cutting tasks. Downsides - so many options makes your head spin. Not USA made. Sometimes to get all the tools you want, you wind up with so many layers it’s too heavy or too thick for the pocket.
Although not my personal carry, I could be very happy pairing an Opinel 6 and a Swiss army sportsman (total $35).