Pretty much, you understood. This is the kinds of justification I have for fancy custom ROMs like GrapheneOS being the equivalent of snake oil. Some bad actors try to twist it as me being malicious, even though I am just telling the facts about how things really are. They do not make life easier, they do not make privacy easy to attain, they make it harder or impossible to use everyday apps, and they forbid you to question their product or motives. FUCK THAT NOISE.