If you've done the due diligence checks to ensure he's not already coupled up, or still on the apps, then this is how some men operate.
He's probably likes his life the way it is (possibly lower sex drive or all his emotional energy on work) and sees someone he is dating as a "pleasant attractive female companion" than a passionate lover.
Met a few of these dating online, good job, good manners, good date, but they weren't massively keen on having a new partner take priority in their lives
I think they were often very holistic in the way they saw life - it was important to them to have a partner who slotted into the broader life picture.
I've probably turned into the female equivalent at present. I'm trying to build up my social life and interests, and someone expecting fast moves or a big chunk of weekends would be a struggle!
I'd also be wary that if I started having someone expecting overnights, then it would be harder to pull back.
It's just so much energy having all the late night intense dates and sleepovers, I'd actually love to see someone for 2-3 hours once a week.
If progression naturally occured it would, but I would feel a bit uncomfortable with dropping my independence too early on.
It depends what you want from a relationship ...if you're looking to blend lives etc then I guess you need to have conversations? Or see if you're actually happy with the status quo?
Obviously if it's making you feel bad then don't continue. But maybe you just think he "ought" to be acting differently but you don't really mind.