I haven't opened one myself since the 5S but that sticky substance that holds down the battery, while it might not be "glue" in a strict technical sense, adheres the battery to the case rather firmly. It's totally reasonable for someone to say that's "glue". This is especially true if they end up deforming the battery when removing it.
I think it all boils down to reparability. Just doing the basics (disassembly, and part replacement) with these assemblies take A LOT more practice and skill than the vast majority of people are generally prepared for.
Does it have to be this way? I think that's the key question. There's ultimately trade-offs between having something that's easy to work on vs something sleek and thin vs something that's affordable vs something that's performant. As consumers we are at the mercy of "genius designers" to decide those trade-off's for us. Personally, I don't mind having my phone be a nightmare to repair as long as it does the job I need it do and I can pay somebody to fix it if that's prudent. With other things, like appliances (that don't have borderline microscopic parts), I really want something that has a service manual.
iPhone batteries have underneath them strips of adhesive that can be peeled up using a screwdriver rolling in a motion like you would twirl spaghetti on a fork. This isn't glue.
Certain older MacBook batteries were glued down. But now, even on newer MacBooks, the batteries are held in by similar removable adhesive strips. All of this is a step in the right direction.
Believe me, Apple has done a lot of things to make third-party and independent repair more difficult. I'm not super thrilled with them. But saying Apple is gluing batteries or screens down when they're not is where I feel it's important to step in as a repair shop owner and explain what is actually going on.
As a consumer, that adhesive strip is just foam tape with glue on both sides. You're correct that it's easier to disassemble then glue alone. But, it's still glued by most people's definition of the word.
I haven't opened one myself since the 5S but that sticky substance that holds down the battery, while it might not be "glue" in a strict technical sense, adheres the battery to the case rather firmly. It's totally reasonable for someone to say that's "glue". This is especially true if they end up deforming the battery when removing it.
I think it all boils down to reparability. Just doing the basics (disassembly, and part replacement) with these assemblies take A LOT more practice and skill than the vast majority of people are generally prepared for.
Does it have to be this way? I think that's the key question. There's ultimately trade-offs between having something that's easy to work on vs something sleek and thin vs something that's affordable vs something that's performant. As consumers we are at the mercy of "genius designers" to decide those trade-off's for us. Personally, I don't mind having my phone be a nightmare to repair as long as it does the job I need it do and I can pay somebody to fix it if that's prudent. With other things, like appliances (that don't have borderline microscopic parts), I really want something that has a service manual.