I think the best solution, both for your work life and sanity, is to use Slack more than functionally. Check in with people even if you don't have a work-related reason to. Send them dumb tweets. Don't be afraid of italics and exclamation points. It'll never be the same as grabbing a midday coffee or a beer after work, but it helps to remind people that you're not just out there in the void. And when the conversation does center around work, know when to switch from Slack to phone. You'll be surprised how much can get lost in translation when you only type.
Every few days I spend at least a few hours at a coffee shop. It’s a change of scenery, a good excuse to get some fresh air, and provides a tiny bit of human interaction that Slack conversations and Zoom meetings do not. Should that no longer be feasible for coronavirus reasons, at the very least see if you can walk around the block a couple of times a day. There’s no water cooler when you work from home, no snack table, no meetings down the block. It’s easy to stay locked in position all day. Don’t do it! Sitting is terrible for your health, and mind-numbing when you’re staring at the same wall or window all day.
Dr. Bill Schindler, a professor of archeology and anthropology at Washington College, demonstrates a couple of the most effective methods for starting a fire in the wilderness. "Even though you may never find yourself in a survival situation, I firmly believe that learning and practicing these primitive skills are an essential part of connecting to your past, your environment, and everything it means to be human," says Bill, explaining why it's important to have basic survival skills knowledge.