Yeah, do you mean the foam ones? They were amazing for seal I found, but they were too much effort to take out and put in. I guess if this is for home listening this might be fine though

It might be that your left ear canal has a weird shape, I think that’s my problem. How I fixed it is by getting triple flange ear tips from Amazon. They are super cheap and work very well. If you use the wireless ones that go in a case this won’t work though