Hello! Apologies for the lack of updates in the thread and thanks for thinking of me, and yes, there has been some update

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For those asking, following the creation of this thread and much deliberation, I eventually stayed on with my current role. I'm moving toward my 4th month as we speak and have found support in some colleagues.
Regarding the bully, there have been several interactions in the organization, and I'm not entirely sure if they are aware of their past involvement with me (again, the bully does not know me by appearance but I do with them as we worked in a time of pandemic). A very close colleague who serves as my social support system and close confidante has implied my bully's awareness of my dislike for them, and on several occasions, my colleague has noticed them staring at me when I'm within the vicinity.
I, however, have not given up looking for better options, as is the case with anyone who wishes to seek a better life for themselves. I suspect I may return to this thread in the weeks to come to seek advice, though it won't necessarily concern my bully.
As far as life has gone, three months of paycheck has definitely helped improve my quality of life, if not future-proof my financial wellbeing for stormier days. Life has moved forward in more ways than one. This is one of the best outcome to arise from sticking it out. However, I will not like that client-servicing in my role is something I dislike strongly, owing to the unpredictability that comes with managing stakeholders.
I'll be back to seek everyone's advice when the time is right.
Thank you all for thinking about me and showing concerns!