These EasyEffects presets are based off conversations on the Framework community site for the Framework Laptop: Speakers sound quality
The name of the preset is the username of the creator on that community thread. I've been using Kieran Levin's flat preset (kieran_levin.json) when on a table and Lappy McTopface's when on my lap (lappy_mctopface.json). But you really can't go wrong with any of them.
How do I import these? Read here.
You will need EasyEffects for this.
Note on louder presets: You may notice residual ~1ms audio artifacts when pausing/playing media. This issue can be tracked here.