Ideally, I’m looking for an Android or LineageOS device with at least 6GB of RAM, compact enough for portability, and capable of running without Google Apps (GAPPS). I’m open to a tablet or flip phone design as well. Since my phone serves as my primary tool for browsing, mobile computing, and communication throughout the day, reserving my laptop and desktop for evening or specialized tasks, performance is key. USB-C DisplayPort Alt Mode would be a valuable bonus, though not a strict requirement.
A developer focused phone like the pixel line would probably make the most sense since they support the unique features you support, and GrapheneOS does have the option to never use the Google suite or to use it in a solid sandbox.
Personally, haven’t regretted my pixel 9 with graphene.