I Agree - basic (non-FT) roaming is already quite fast (except when using 802.1X/EAP). So unless you are walking around your house while in a Zoom/Teams session I would suggest to stick to the KISS principle and not enable 802.11r
These reports
- https://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/116493-technote-technology-00.html
- https://amiyasrivastava.weebly.com/wireless/fast-transition-in-a-nutshell
are mentioning following delays (when I interpret them correctly)
- roaming delay non-FT 150ms (PSK)
- roaming delay non-FT 500ms+ (EAP)
- roaming delay FT 16-71ms