Guide has been updated ahead of a likely more substantive update in October when the new Pixels launch. The only change this time is the addition of the Poco X3 NFC, which has set a new bar for £200 phones to put it mildly.
Right, I've had a proper look at it. I like it more than I liked the core S20 series or Note line when they launched, but that's a low bar. It would be a nice option if the aformentioned OnePlus 8/8T didn't exist, and if they scrapped the 4G model and started the 5G model at that £599 price point instead. The 5G model at that price would have been a fairly even match, with the same processor (there's apparently no regional models so all 5G versions get the 865 rather than Exynos, thank Christ), a high refresh rate display, large battery and generally similar specs, with the OP8/8T winning on charge speed and build materials while the S20 FE likely winning on camera quality and extras like expandable storage and headphone jack. Unfortunately at £699 it occupies a no-man's land between the extremely similar 8/8T for £100 cheaper while the substantially better 8 Pro exists £100 in the opposite direction.
The 4G model is a waste of time. Same price as the 8/8T but a weaker Exynos processor with the 5G modem stripped off, you'd only really opt for the Samsung for the camera and the promise of better updates, at which point I'd sooner direct people to the far cheaper Pixel 3a/4a models with even better cameras.