Has anyone found a solution to the short naps?

I know I'm not the only one dealing with 30-45 min naps, so I thought I'd reach out for tips.

Today our guy had three 30-minute naps. I'm assuming this is just part of the sleep regression. That's the worst it's been yet. Normally it's four 30-45 min naps. He sleeps for about 10.5 hours overnight on average (in 3-5 chunks) so I think he's getting enough sleep but is there any way I can at least get three 1-hour naps out of him? Do I just wait until his wake windows are longer? At the moment they're just about 2 hours which I think is pretty normal for a 4-month old.

He sleeps this short no matter where he is: stroller, crib, bouncer, our bed, his playmat, the car. It's universal.

Anything that's worked for you?