I work out of my home so I am with Tosca a lot. Unless I am reading your post wrong, I am assuming you are doing the same, which means your are around a lot. Tosca is usually nearby wherever I am, or she follows Mojo someplace. My cats keep her busy sometimes but it's not enough. That makes it encumbent upon me to make sure she gets her exercise and spends some FUN time with me. She gets her walks but she also gets to run and play outside with me. Walking really isn't enough exercise for a dog that has any energy. They like to play, run and face some fun challenges, but they like to do it WITH us. It not only keeps them mentally happier, it keeps them from getting fat and lazy. And I think it increases the bond we have with them. Our dogs are a lot like kids. They want their parents to be fun sometimes! If the only time Tosca spent with me was lying at my feet and walks, I really don't think she would be very happy. It's not only good for your dog, but it's good for you too. Working from home requires some discipline and sometimes, if you aren't careful, it can turn you into a very unsociable person who loses site of the things outside your home. So being home also requires the discipline of having fun too! The same goes for your dog, who is really subject to your habits and will adapt to them, happy or not. So your dog is a great way to make sure that doesn't happen to either of you.
I take Tosca with me to places whenever I can. I never go to the pet store for example, without her. I mean it's a place where she can socialize and she is allowed to be there. I would say that if you and your dog are not getting out of the house for more than just daily walks, you are both losing something. The same goes for when you are inside. If there is no play and bonding together, you are both losing something. Even if you just take time to brush your dog, it's a bonding experience. My dog never complains. That's what's great about dogs vs. people, lol. But that doesn't mean my dog doesn't "wish" for some fun.
The one thing I want to mention to you is something my trainer made me do at a very early age with Tosca. You may already know this, so if you do, please disregard. Because I am home working and do not leave the house to go to work like most other people do, he made sure I left the house for increasingly extended periods of time during the day, so that Tosca would not acquire separation anxiety when I do leave the house. I am really glad I paid attention to this. Sometimes when a dog is used to having you around all day, they grow to expect it and can't be happy if you are gone. I did not want that to happen. So I thought i would just pass it along to you just in case.