Mobile browsers access_token cookie deleted earlier than JWT expiry

[Pirulax]

The Max-Age of the access_token should perhaps be explicitly set to be the same as the exp of the JWT, this way (hopefully?) mobile browsers will keep the access_token for longer . Right now the Max-Age attribute is unset, which translates to Session (At least that's what the dev console says), which causes mobile browsers to not save the token for long enough (Once the page switches to "Preview" the token seems to be gone which is rather annoying) (See this).
I'm not entirely sure if this is the best solution to my problem, perhaps refresh tokens would be a better solution? (I guess they're stored differently, rather than per-session? Even if not, it seems to be a more "secure" solution.