ThinkPad P14s Gen 4

If docker was the only real consideration, a T14 G2 R7, is up to the task, and with the option, to expand RAM further. Given unknown graphics rendering requirements, the fixed 16GB RAM of the T14 G3 could be more a long term bottleneck, than AMD 5000 and 6000 series differences. Note, T14/P14s stock

That is an excellent deal, and a very powerful laptop. Just be aware, for AMD T14/P14s Gen 3 and Gen 4, the RAM is fixed only, it can't be upgraded. It was specific to T14/P14s Gen 3 and Gen 4 AMD models. So AMD Gen 1, Gen 2, Gen 5, Gen 6, T14/P14s all have upgrade-able RAM, but not Gen 3 or Gen 4.

Go with a Lenovo Thinkpad T495s 16gb+ variant if found for daily usage and light gaming and great battery life (Ryzen option only)Go with a Lenovo Thinkpad T14 Gen 2 or 3 16gb+ variant for daily usage , mid gaming and mid battery life about 6 hours (Ryzen option only) Go with a Lenovo Thinkpad P14s

Given what you want of it, my hesitation is RAM is fixed, and can't be upgraded beyond 16GB. AMD T14 G3, P14s G3, T14 G4, and P14s G4 all fixed only RAM. Intel G3/G4 equivalents generally, but you must check, had 8GB/16GB soldered RAM + 1 open RAM slot. AMD P14s shares the same hardware as T14, but

52Whr battery on AMD versions is not really a problem. Don't look only at numbers. Check the reviews. AMD processors are efficients and battery life depends on processors TDP (energy consumption), screen, etc. https://www.notebookcheck.net/Lenovo-ThinkPad-P14s-G4-AMD-review-fast-portable-straightfor

It may be out of budget, but someone mentioned very large discounts at Lenovo UK, and I saw this P14s Gen 5 AMD, for £599. If you priced it as a custom build, it'd be just over £1500, but even at its pre-built offer price was £800 before. Ryzen 5 PRO 8640HS, 16GB RAM, 512GB NVMe, 400 nit 100% sRGB 1