TLP 1.8.0 Beta 1 is now available and I would be grateful for your help with testing.
Of particular interest: for the first time, charge thresholds are supported for #Dell laptops as well as #Chromebooks and #Framework laptops. The latter two can also recalibrate the battery.
https://github.com/linrunner/TLP/issues/781
https://github.com/linrunner/TLP/releases/tag/1.8.0-beta.1
https://linrunner.de/tlp/settings/bc-vendors.html#chromebooks-and-framework
In the meantime TLP 1.8.0 Beta 1 packages are available for Arch, Debian/Ubuntu and Fedora: