Earlier quoted context omitted.
Borderless buttons to have the right to exist, but you should be very careful with their use. For example, take this UI I made recently: https://mastodon.social/@grishka/107998100334356147 , 2nd screenshot. The button to decline invitation looks like a link (same color) and it's next to a real button. No one would ever get confused by this, it's pretty clear it's clickable. But a black word in a larger font among bla…
It's not very clear to me it's clickable.. Is it an action, or a link to a different page/view? If it's an action (accept/decline invite), make it a button. If it's navigation, make it a text link. You are giving totally disparate cues to the user when the actions taken upon clicking are of the exact same type. My initial reaction to a piece of text directly next to a button is "why is there random unrelated text the…
“Decline invitation” needs to be something you can do, of course, but it will be used I find that having buttons side by side forces me to think in a mildly unpleasant way, like I have to read two thinks more carefully because there is more onus on me to decide which is the typical action.