So it takes you 15 minutes to put water in tank, put grounds and filter into the coffee pot, and brew it? And you can't do anything else productive with your time while the coffee is brewing like take a shower, login to work a few minutes early and read and answer emails, brush your teeth, do some dishes, take out the trash, walk your dog, or anything?
And your work doesn't allow you to get up out of your chair for the 30 seconds it would take you to walk from your computer to coffee pot and fill your cup and walk back? Or even better, bring the entire carafe back to your desk with you? Are you working for the FSB and they have surveillance cameras in your house or something?
It really sounds like you're trying your absolute hardest to turn making coffee into such an onerous chore that it negates all the other benefits of not having to schlep to an office.
My friends and I all use Simplex and have been very happy. There's an annoying feature where messages in group chats are sometimes delivered out of order, but it's easy enough to live with.