Some integrations can have several instances listed on the integration page, but only 3 will be visible, so it can be hard to work with them and the scroll becomes rather erratic, when many instances are listed.
I have ESPHome with 15 devices, Kasa integration with 12 devices and the Local Calendar integration I use for light and heating control scedules with 15 calandar and they are all hard to work with, but topping them all is the Powercalc integration, which seems to add an extra instance for every device you already have in HA.
I would like to suggest an icon in one of the corners of the integration that will expand the instance list in a larger window, so it will be easier to work with.