It's also an issue on HPs similar x360 line. And it is a consequence of optimizing for the arbitrary metric "slimness" at the expense of cooling, while stuffing in high-TDP CPUs. Who on earth has a bag or backpack where 15 mm vs 21 mm thickness means the laptop won't fit?

Get something with a bit of thickness to it, like the Latitude 5530 (which Dell will also sell with Ubuntu) and stick to the low-TDP CPU versions.

If your dev work is CPU-intensive you should be doing it on a workstation or server anyways. A machine where your cooling solution can dissipate 3-400W without batting an eyelid is going to beat the crap out of a "high-end" 45W TDP laptop.

When you're on the road, just use SSH with tmux or RDP or whatever you prefer. At your desk, set up a monitor and a workstation for the serious work and keep the laptop on the side for meetings, emails etc. A USB switch for the mouse and keyboard works well and is like $30.