While I agree with the recommendations (I have a ThinkPad P14S Gen4 now) I wouldn’t say the battery life is great - especially if OP wants to do video editing and such. Otherwise it’s an amazing laptop (now that it’s actually supported by the kernel). I still suspect the Intel variant would be better for battery life though.
With that being said for anything this intensive you’ll need a charger with any laptop because it will simply not be able to keep working for 8+ hours with this kind of software. In fact get a docking station and a second screen too unless you plan to be on the go all of the time; the productivity increase from getting a second screen is insane.
Oh and be prepared to lose a lot of the fancy stuff with Linux - sure you get an amazing screen but no HDR. You don’t get the sound improvements from the official Lenovo drivers for Windows, etc. Oh and you should keep the Windows partition (just shrink it to a minimum) - makes it much easier to keep the bios up to date.