I have been using one of those for a year or so (Dell Latitude 3190, 4GB, Debian 11), mostly for web and remote access.

Firefox with uBlock and NoScript runs OK, not much difference between this and a proper PC. YouTube on 1080p60 maxxes out all cores, but yt-dlp+vlc barely touches 20% CPU. Similar results with Twitch. Remmina/RDP to a proper workstation works flawlessly. Overall performance when browsing feels much more responsive than Atom Z3735F or RPI3. VSCode is workable, but not ideal. Virtualization (QEMU) is for decorative purposes only.

Battery usually lasts 10-12h, with 4W power draw when idle and 10W at 100% CPU. No thermal throttling so far.