You could get a MityVac hand pump, disconnect the line at the fuel pump and connect it there and check to see it will pull gas from the tank. If it doesn't suck gas and doesn't pull a vacuum then you have a cracked or leaking pickup. If it pulls vacuum you have a blockage. Take you 10 minutes to find out.

I had the same issue on the starboard tank of my AT. The tank had varnished gas crud in it. It would clog my filters and sometimes plug my pickup tube. I drained my tank and vacuumed it with an air venturi vacuum through the sender opening. Do not use a conventional vacuum! I also used a stick with a rag and a bunch of duct tape stuck to it with the sticky side out to pick pieces out of the tank.
Next time out bring an extra filter with you and some gas in a bottle to fill it. (Powerade,20oz) If it happens again change out the filter and see if it runs for a while. I went through about 7 filters before everything was good.
I pull through my filters with Mallory fuel pumps.

I used to have an 88 Baja with a tank in the port stern beside the engine. That tank had a bung welded to the top. The bung had inside threads and had a pickup tube that went straight down with a 90 degree top elbow fitting. There was a normal anti siphon valve threaded into the pickup top elbow. That anti siphon valve was parallel to the deck, It had a pretty sturdy barb on it and was secured by the required 2 clamps. When I bought that boat it was already 20 years old so I planned and expected to change and clean out the fuel system. It's a good thing I did. It was all dirtied up.
The barb on my anti siphon valve would not release the fuel line no matter what I did. I always had to slice the line whenever I needed to pull off the fuel line, so I left some extra line for the future.
My anti siphon valve was cruddy, I just took it to the bench and gave it a good sploosh with carb cleaner while I exercised the check ball mechanism with a soft piece of plastic or such.
You could be picking up something in the tank, or fighting a restriction. I think changing out the lines and sucking out your fuel will be worth the effort.

I am on the sidelines right now recovering from shoulder surgery. My current boat needed a fuel sender and had last year's gas in it. So I spent the money and effort to suck out the fuel while I had the sender out. I used one of those suck pumps for changing oil. The pump was new so the fuel went right in the cars.
This is the suction pump https://www.ebay.com/itm/Manual-7-Li...72.m2749.l2649
I went to the hardware store and got a longer roll of stiff nylon hose and sucked out half a tank of fall 2019 gas. Then I could see that my boat tank was good. This one's an 87 so it's not bad to check. HTH