Migration to a new scom

Hi, I’m busy with a side by side migration of our scom 1801 to scom 2019. This project will take a long time, because in the mean time we are reviewing every application that is monitored. All our windows and linux agents are multi-homed while doing this.
I saw that SCOM 2022 is already there and I was thinking to do an inplace upgrade of the new SCOM 2019 environment, while in the process of migrating everything.
Can the agents be multihomed between SCOM 1802 and SCOM 2022?
What do you think of this idea?
Any suggestions?