I am from Monaco, so a French way of eating. Weaning is guided by paediatricians and not left to the influence of internet. There is none of this war between BLW or puree. We are taught to use a spoon for food you , an adult, would usually use a spoon for , so soups (we are big on soups), puree, ... a fork for anything we eat with a fork such as small pieces of pasta, fish, .... and hands, you get it, for anything with eat with hands, so a piece of bread, a piece of fruit... The fork makes it so easy. Stab a piece of kiwi. Easy. Try to pick up a piece of kiwi with fingers or spoon...You will need more than one fork! At nurseries, small babies, eat on their own.
Ultra processed foods, be it processed meats, but also processed snacks... are not recommended. Well, we do not have the snack culture. We don't even have a word for snack. There is the "goûter" when kids sit down to eat something after school. But no adult has snacks. Ever.
If you keep soups in a small container and warm it up with real cheese such as parmiggiano (not the fake parmesan) , and a tablespoon of rice/quinoa .... or the minestrone, small veggies and beans.. Soups are greay because you control thickness. At first very liquid, then dense, then small pieces.
For meat, think small meatball in tomato sauce with peas, a meatloaf - half meat, half veggies - , and fish that tastes of fish and not of fried food. We give mussels and clams around the age of 10 months. It takes 6 minutes for the lunch to be on the table. Biggest pot you have, oil and garlic in the bottom, heat up, drop washed mussels, lid on, 5 minutes and done. I add a dash of white wine in the last minute.
I live in Australia now, and the first years, when organising playdates or sleepover or even dinners, , I would have parents calling ahead asking/telling me about food issues. You would NEVER have a French parent telling you about my child doesn't eat...whatever...or only eats....
IF you are able to avoid the highly processed highly palatable highly addictive processed food including the puffs, crisps, bars, .... chances are your son will enjoy food in all its variety.