I maintain two seperate identities split across different devices and web browsers: public and private. My public identity is currently split across two devices: my Librem 5 USA (PureOS) and Librem 14 (DebianVM) using Firefox ESR; while my private identity is only on the Librem 14 (WhonixVM) using Tor Browser - eventually I plan to acquire a lapdock for the Librem 5 USA to truly seperate the two devices and their purposes.
My public identity has a unique browser fingerprint using Firefox ESR: it is designed for compatibility and credibility with the public. I use many web extensions for various purposes and make no attempt to fool naive scripts.
My private identity has the same browser fingerprint using Tor Browser: it is strictly for anonymity purposes. The Security Level is always set to Safest.