Ill try to answer your actual question, but there are many views, and many possible answers, as I am sure you are aware.
Porn (and the wider sex industry) is a sector of human activities where there are some real concerns about consensual behaviour, and abuse, vs. freewill.
Of course it is easy to forget that the exact same issues exist in many other industries - are clothes made ethically and without child/slave labour? What about fishing, or tea, or cotton? What about manual workers and fruit pickers? What about people in any country who feel forced to work in a job that they feel does them emotional harm?
So the first point is, this is a real issue, but it's not an issue that only affects porn. Perhaps porn makes it more "visible" or poignant because it is so personal and intimate. For example, we haven't been "taught" by our cultures that being reluctantly forced to do a bad job is as evil as being reluctantly forced to do sex.
The effect is probably different as well. When harm happens, it seems so much more likely to be serious or long-term harm in a sex industry context (violence, drugs, disease), or because it preys especially on young vulnerable people, or because it can be much more painful/difficult to escape. But that could be incorrect perception - perhaps there are people in all industries who feel forced to accept abuse, harm, and suffering, to keep a job, or support their children/families. (Personally I suspect it's a correct perception, though)
So this is not just a "porn industry only" question. Really, it highlights a whole range of issues that affect all people and industries, in a wider context. Porn is one of those. Also, porn is an industry where the effects of abuse/coercioncan be especially severe and harmful, and where our culture does not evade the question of whether power imbalance is a bad thing. So it's more visible as well.
Turning back to your question, I think most people here would agree, it is good to try and avoid things that are based on abuse, and benefit abuse.
With other industries, we do this (if we care enough) in two main ways:
We might decide to choose our supplier carefully - only buy tea and chocolate from businesses that have a reputable certification showing that some trusted body checks them for abuse, child labour, etc. That reassures us that the supplier is probably not using abuse to produce their products, and that if we buy from them, we will not be supporting abusive practices.
Or we might decide there is too much risk, and not buy that kind of product at all.
(Also, as a society, we might ban various industries or practices, or restrict them,to try and minimise harm. But this is an action by a society, not by an individual,so it isn't really relevant to your question)
These are probably good ways to start looking at your question. Beyond doubt, many people in porn movies and pictures are there because they choose to be, and also many are there because they are pressured to be - they are coerced or enslaved, often by people with power over them, and do not have a "way out of it".
We know this because a search online shows people in the sex industry with both of these positions. I would trust their stated views. If we trust a person who says "I like my work", and we trust a person who says "I am trapped in my work and cannot escape", they are probably the authorities on how they feel. (Note: not everyone agrees with this perspective).
So applying the same approach as anything else - are there sex industry bodies, or ways to find out, which people feel happy in their work, and not trapped or coerced? Are there relevant sex industry bodies, or specific actors whose online websites/blogs/feeds seem to show that they like and enjoy their work? Maybe you can find out how the sex industry tries to handle this issue, and if there is anything within the sex industry that you feel safe to rely on, to be sure the actors in the porn you enjoy are not trapped/coerced.
If these do not exist, or you don't feel safe to trust them, then you might feel that it is safer to completely avoid the kinds of porn which carry risk of unwilling actors.