Dark Theme. Thank you.
Android and Chrome redirects might be some rogue app issue, check apps installed and uninstall any that look dodgy. Clearing web data might help. I just tried on my Android phone Chrome and had no redirects. Firefox on Android shouldn't have any issues. I noticed some ads target Chrome and Android users a lot while on Firefox on Android I don't have such issues so stick to using that as my main web browser.
Firefox can get it too.
Because I get it on both FF and Chrome.