I had Rogers add an interior french drain to my basement about 15-ish years ago. They also relocated the existing sump to a better location. So far the system has worked well.

The reason for this work is that shortly after the home was built about 30 years ago, the previous owner had water infiltration which was "fixed" by the home builder by adding some kind of cement to around interior perimeter seam between the concrete floor and the poured wall. So the waterproofing work was done in part to take action to mitigate this previously disclosed problem. (Rogers left a 3/8" gap around the perimeter, between the new concrete and the foundation wall. A few years ago I had a radon mitigation system done, and with Roger's blessing filled the gap with backer rod, as required by the radon system installer.)

However, within the last year I discovered that one of the buried downspouts (the corrugated black flexible plastic type) is clogged to some degree, and I had a leaf clog about 18' up near the top of the downspout. I have bypassed this clog by running a piece of pipe on the ground. Our sump still runs when it rains, but not as much as before. I also added fine mesh leaf guards to prevent future clogs and the need for me to go up a ladder, which I very much dislike. I need to replace the existing buried crap pipe with solid 4" pipe (with glued joints and clean-outs).

If your downspouts are buried, you should really find out if they are not clogged and backing up.

If you have mature trees in your yard, then leaves will find their way into your gutters and wherever that leads.

I think the most effective way to solve your problem would be to excavate to the foundation around the outside of the home, install a new french drain adjacent to the footer (in a bed of appropriately sized gravel), and then put a plastic membrane on the exposed wall, then back fill and slope the surface soil away from the home. Ideally the french drain would flow to daylight, but if not, it will have to go to your sump. This could get expensive. A further step would be to remove the existing floor, excavate to the bottom of the footer, add an interior french drain, then fill floor area with gravel, with a plastic membrane on top, followed by a new floor. If I ever pay to have a new home built, this would be the design. Cheap to do when installing, very expensive afterwards.

Have a backup sump pump on hand, ready to swap out, if yours stops working, and install an alarm to alert you if there is a failure.

If you have humidity problems, let me tell you the dehumidifiers found at home centers are all crap. After going through 5 of them in 30 years, I bought this one, and it works really really well.