This is true, and mostly happens because of the self applied impostor syndrome with what we consider as quantitative measures to who we are i.e. our title, company, salary drawn etc.
The first step is to let go of this mindset, because while we've been conditioned to think that this is what matters your life's purpose imo is simply living to pursue fulfillment. I find it useful to anchor to activities that force you to disconnect. These could be a good exercise routine, an interesting hobby like music or art etc
What anchoring does is that it pushes you to focus more on your activity at the moment and put your mental/physical prowess there to continue it!
Once you've successfully built some discipline and have just started showing up, you focus on building your milestones that help you stay immersed and your mind craves outcomes.
Prepare your mind board, ask yourself what makes you 'you' and what it will take to live your life of fulfillment. Make travel plans, quantifiable goals that you can chase beyond work metrics that help you navigate through weeks or months to achieve those.
This in my mind is what can help you dissociate well. An upside is, my hobbies and other projects have helped more immensely in my professional pursuits than simply my work because people love connecting with others as people they can look upto, who see you as one chasing your own set goals. The outlook and optics completely changes in your favour and you become a more authentic persona to be connected to than everyone else who is just about their job :)
Hope this helps you, drop a reply if you need any suggestions or ideas or want to know what worked for me