When I had got my Model S 3 years ago, it came with a cable with a NEMA 14-50 plug at one end, and the Tesla plug on the other end. Plus, it had adaptors for J1772 and 110v outlets. Once you installed a 240v NEMA 14-50 outlet, you could get a reasonable charge at home.
I agree that JLR can do better than what they provide: a 110v charging cable that would take a week to charge the vehicle. I took it out day 1 and am unlikely to ever use it. I ended up buying a MUSTART Level 2 Portable EV Charger (240 Volt, 25ft Cable, 32 Amp), Electric Vehicle Charger Plug-in EV Charging Station with NEMA 14-50P from Amazon, and that has worked well thus far.
I haven't purchased a TeslaTap yet. If you have a NEMA 14-50 outlet at home, you just need to buy something like the Mustart/Juicebox/Chargepoint etc cable. The only other use for a TeslaTap is at destination chargers.