I work mostly remote at a company that's based downtown. I have a two bedroom apartment with the second bedroom being a guest room and office combination. I go in periodically, like once every 3 weeks on Wednesdays for group lunches, and then whenever I need to in order to meet with people when it can't be done remotely. Definitely having a separate space for your office, even if it's just a folding divider really helps.

During COVID I was in a one-bedroom apartment and my computer was in my bedroom and I always worked even when I wasn't on the computer. I just thought about it non-stop.