This decision is solely a matter of aesthetic preference. Which appearance do you like better. Quartz is not more durable and lower maintenance than granite. There are granites that never need sealing, and are impervious to staining and etching. Realize that skyscraper buildings, city plazas, and statues are made of granite. As well, there are some granites that do need sealing and can stain - you need to do your research like you'd do for any big-ticket item. By that same token, there are plenty of tales of woe on this forum about problems with Quartz staining or chipping, and also plenty of tales of Quartz that are impervious to that and very low-maintenance.

Whether it's Quartz or granite, you need to do your research on the maintenance and durability of the particular ones you are considering. But most of all, this decision should be based on which appearance do you prefer for your kitchen.

"doing research on YouTube, decorating blogs"

Be careful of that; most of those are paid endorsements by somebody - whether the estone industry, granite distributors, or any manufacturer. Take those "decorating blogs" and YouTube videos with a grain of salt. Better to ask questions on forums like this one with real people.

In the end, it's going to come down to whether you prefer the look of natural stone or the many different quartz options for color and pattern. I rarely spec natural stone for kitchens for maintenance and durability reasons. I'm a big fan of Silestone and Dekton, both made by Cosentino. Here's a kitchen we did with Silestone Charcoal Soapstone:

Bernal Heights Sustainable Kitchen · More Info

Bernal Heights Sustainable Kitchen · More Info

And here's a wet bar we did with two different colors: Dekton Luna for the waterfall counter and Dekton Sirius for the perimeter counter:

Pandemic Playroom on the Peninsula · More Info

“I rarely spec natural stone for kitchens for maintenance and durability reasons”

@Sabrina Alfin Interiors - please do not paint such a broad brush. There are thousands of ”natural stones”, and to say they all have “maintenance and durability reasons” is wrong. Many stones need no maintenance at all, no sealing, they won’t stain or etch, they are very dense. You are a ”Pro” and should be aware of this.

@M Miller, I should have clarified. A lot of people want marble in their kitchens. I try to dissuade clients from that for maintenance and durability reasons. As for granite, I don't like the look of most of it and choose not to specify it for aesthetic reasons. Hence my preference for quartz and ultra-compact surfacing.

Obviously, different people like different things. But if I'm the one designing your kitchen, I'm going to steer you toward materials I know and like.