Homey x alexa doublon and automate *newbie

Hello gang, im pretty new to smart home and ive link my alexa to homey and veci-versa, what i have at home i got smart blind from smartwings that i am gonna connect evantually via matte thread, i got a genie garage door wifi connected with aladdin connect but the skill disapeared from alexa app and i would like to connect to homey, and i have lutron hub and all my switches are from lutron and are smart,
That my point here, ive linked my lutron to my alexa and now i see my device in alexa app, when i got my homey i link my lutron hub to homey, then i see lutron in homey and into alexa i see the first lutron switch and lutron switch from homey, what is happening here ? Did i linked everything wrong ? When i want to start an automation do i have to use in homey app for that or use alexa ? Then i use the device from alexe in alexa or in alexa from homey ? Or if i can unlink lutron from alexa to keep only the one from homey ? Can i use alexa to start a homey flow ?

I know it is alot of question in the same thing but i know how to pair device in both system but i struggle a little bit to know how i am suppose to link everythin in homey and use alexa has vocal assistant to start flow into homey, i dont have any sensor yet, i would like to put my hunter douglas fan tho, garage door opener,smart blind, light, and scene that control like tv time but im not sure on what to start with

Tanks you in advance for you answer, i and pretty use to electronics usually so i feel a little bit newbi in there, smart home are a little bit more complex than exptected, i hear on every video that all device must be compatible, then i hear about homey that have all protocols in the same box but i cant connect every device on it ?