When I changed from homeseer to HA I had 87 devices to move. I took the time to include/exclude. It took me about 12 hours. I also had a spare USB dongle so I save the homeseer setup in case I needed.
I think it was worth the time to get a clean fresh start and to learn HA better.
This helped me learn the system better. HA does have a steep learning curve but the Dev’s are working hard to make the system better. I have never looked back. Hacs, Integrations and add-ons make the system so much better than homeseer. Not bad mouthing homeseer, I just prefer HA more.
In my insignificant opinion, it is easier to configure and add other devices not to mention it now supports matter. Hope this is of use and I understand if it is not.