I will keep the Ikea gateway just for updating any possible Ikea bulbs I may buy.
As of this writing, I'm using 9 Ikea bulbs and 3 Hue ditto. So far I have had a week os flawless operation. All Ikea bulbs are handled beautifully from the Hue app and remote.
I also have adapted my home automation code in Node-red. That was a no-brainer.
Besides my homebrewed automation, I also use Google Home assistant which also works fine. However, I (and my wife) need to learn (and remember) the vocabulary and names of all bulbs and rooms.
Even though my PIR sensors, together with Google are doing a good job of controlling the lights, more buttons are needed.
Remaining from the Ikea migration, is to make use of the Ikea-remotes for Hue.