It's part of the gig. Unless you are Sting, you are not the star. A lot depends on the type of music but for the most part, you can expect to get shoved to the back. Learn to sing or take up lead guitar if you want the spotlight. On bass your job is to serve the music and the song and to make the band sound good. Other good musicians know how important the bass is.
Yeah, I noticed it early on but it never bothered me. Nobody cares about the foundation, just the pretty curtains hanging in the windows. I’ve meet a few guitarist that are aware of the importance of the bass. I’ve played with great guitarists that would loose their place in a lead and come out at the wrong place. Guess who’s there to catch them, I just smile and nearly laugh out loud when they are being complemented on their magnificent lead. They know, but most can’t handle the truth, others acknowledge that I make them sound better. Everyone screws up but we are in a position and on an instruments that can work it in, blow past it, often creating an even better line from the error.
I’m happy to be in the shadows, the best place to control everything. Without foundation there’s no place to hang the pretty curtains.
I used to play with a guy who learned the bass later in life. Playing live, he had to turn up loud enough so he could hear himself clearly over the rest of the instruments. Audience members complained about too much bass. I explained to him that the sine wave of a low E peaked 28 feet from his amp, then played bass for him while he stood out on the floor while the band played, and he got it then. A bass player who knows volume and keeps time is essential.
It is really a sad situation that bass players are pushed to the rear of a recording. Without us there is no groove, there is no feel, and nothing that ties the melody to the song...
Not the way I mix tracks although, a lot of it depends upon the sound of the bass. If it's a dull, thumpy, sound, it has to reside more in the background so it doesn't cover up many other things in a mix. If it has more mids or a sharper attack it can be brought to the front more. It also depends on the bass part and style of music being played.
Bass frequencies are extremely powerful and just because they are lower in frequency than everything else, that doesn't mean they won't interfere. They most certainly will! Anyone with experience doing pro audio will agree.
If it's a rock mix I usually let the kick drum carry the low end, around 50 - 60Hz, and roll off most of anything on the bass guitar below about 100Hz. That makes it so the bass can be pushed more to the front of the mix without masking anything else. A jazz mix doesn't require a lot of low end and the bass lines are likely going to be more intricate so, the bass can be brought forward.
There are too many factors involved with how instruments in a mix can be stacked up to cite generalizations. Each song is different and as such requires different treatment of the tracks. All I can do is report how I do it and things I have found to be relevant with that approach.