Tapping on a Reddit link from mobile has mostly been pretty similar to this already for me. They have had an issue with DDG mobile browser for ages, refused to show more than a page of content and kept prompting me to “get the app”, which didn’t seem to recognise my third-party Reddit app… So I just hit the back button. Just recently, oddly, I noticed it had started working, but I’m in the habit of ignoring Reddit links on mobile anyway now so almost never go there whether it works or not.