My 3 most recent experiences with handover...
1. My department 2nd IC left while I was a new staff and the dept director (10+ yrs lao jiao) ask me to take over their duties. Basically no handover at all as the departing staff clear leave ~1-2 weeks after announcement. I just try my best and do, the dept director was okay but in dept meetings sometimes will kenna suan, "Don't you know xxx thing is done in a certain way" or "SOP has always been xxx, yyy" or "Good luck with your proposal, the other dept will never approve" etc. 1st year was quite tough.
2. I joined a role which is supposed to be done jointly by 2 staff as 1 staff (3 years exp) just tendered. There was a 20 mins call to "handover", where basically the resigning staff told us the rough duties, sent us a generic company SOP legal document (30+ pages of rules), and pointed us to a shared folder with 1000s of files. The other staff (1-2 years exp) was fairly new to the role too and basically just tell me to "chill and don't worry" when I ask him questions on how to do the role. I worked with this other guy for ~1 year, but never met him physically until he resigned and I complained to the dept director that there was no handover and this guy isn't even clearing the daily shared work. After learning the role myself for 6 months, I realized that this guy didn't care for the job at all and I had to remind him to do his work constantly. After both of them left, I realized that alot of the filing requirements were not met for many years, there had been high turnover in the role with ~5 departures in 8 years, outdated report formats were used etc. Kenna internal audit and the department was one of the worst performing and the audit department try and blame me and ask me to do remedial work for all the past years. I laughed at the audit guys and tell them that the information is all missing and they can report it to the CEO. Auditors insisted repeatedly that I had all the underlying decade of information and would need to compile everything within a month or face penalties. I laughed and asked the auditors to do it themselves since they know I know where the information is and they were 'most familiar' with the requirements,. In the end everyone in the audit department left lolz. By the time they recruited new audit staff, it was my turn to throw letter.
3. My department staff had resigned and my dept boss asked her to handover her duties to me. We sat down for about 1 hrs to chit chat. 20 mins was on actual work stuff like transferring files and answering my specific questions as I was quite familiar with the role already. 40 mins we just chat about random stuff. Got just enough info to bring the projects to completion and had to read ~100 pages of new materials to finish everything. Not too bad experience.