Target shooting or trap and skeet.

• Bowling
• Darts
• Boccia Balls
• Shuffleboard
• Golf
• Disc Golf (way better than regualr golf imho)
• Canoeing/Kayaking if you take it easy

Archery is very chill, while still incentivizing you to walk a bit

I have "emphysema light", doctor's words, not mine. Don't know if this counts as a sport to you, but kayaking is surprisingly easy on the lungs.

People tend to automatically think "white water", but I'm in the flattest American state, so kayaking to me is mostly floating a slow river or creek, or at most, paddling around a lake.

The price of admission isn't bad. FaceBook Marketplace always has deals. All you need is the boat, a paddle, life jacket, whistle, and any other gear you might like. A huge yellow sponge is a must. If you get into it, you'll see just how versatile one is!

If you take the time to learn and practice proper technique, you can motor around with little effort! We saw a girl in a short kayak blowing her friends out the water at the local bayou last weekend. LOL, she was fascinating to watch from afar, hauling ass with so little effort.

Here's the thing, the longer the kayak, the less effort. Short boats tend to tack back and forth, wasting your effort. Which is what made the chick on the little 8' boat so neat!

E-bike?

There is a drone race track near me. Took me forever to figure out what it was. Why are the goals 30 feet in the air? What sport is this???

I like table football

In the martial arts, Tai Chi is the obvious answer.

Consider Aikido. It's generally more like choreographed exercises. A lot of dojos are very understanding of physical constraints. Check with your doctor, it might be good way to gently test your limits. Plus, it's important to know how to fall safely.

Anyone say cornhole yet?

E-sports

Motorsports

Shootingsports

Bowling

Snooker

Darts

Archery