What glue should be used to adhere the watch screen?

My Fitbit Versa 3's screen is starting to lift up and fall off. There's no damage to the bezel, and no issues with the battery or display so far. I'm not worried about how waterproof it is, I rarely if ever even splash it when washing my hands. I'm mostly concerned about solidly adhering the display down so that no damage can occur to the electronics or wires. I had tried taking it in to a local repair place, and they said they glued it down, but the adhesive they used failed within two months. If I gently lift the screen, I can only get about a 1-2mm gap to place any adhesives, so liquids would probably be the best option. Which would be the best option? Some sort of silicone glue or superglue? Something like B-7000?