If you find removing the PTFE tube from the tool head inconvenient, you can print this model to assist with the operation
This is an slightly improved version (1mm bit more loose) of the PTFE Remover tool provided in the official BambuLab FAQ page here : https://wiki.bambulab.com/en/a1-mini/manual/faq
How to use : slide in the ptfe bowden tube, when you want to disconnect use the tool to apply pressure and pull to release the cable