We moved into a house about 10 years ago. Our garden current consists of 4x 3m2(4' x 8' for fellow Yanks) raised beds separate by 1ish meter (4') paths. We've also spilled into a fifth in ground bed for things that are more deer resistant like onions. I added DIY drip irrigation, also use a hose timer, etc and the four raised beds are pretty dense thanks to leaning on things that climb to get more garden volume.
We could expand the garden more if we want to, and likely will in the future, but it sounds like your garden is larger currently.
I am pretty jealous of your setup from an everything else perspective. We have to have a fence around our garden to keep deer out, but it can't block sunlight for the plants. This means the fence is pretty lightweight and that makes it easier for the kids to break. The space between the garden beds has always been a struggle to maintain. Mowing grass was annoying, so I mulched between the beds two years ago. Now I have another area to weed. Not using containers also means that if we plant... borderline invasive things like raspberries they try to escape the raised beds. I might pull them all out after the harvest this season as they're getting more ambitious with their escape attempts each season.
Not that I can really complain, I'm happy to have a reasonable veg garden :)
For anyone else looking for the source text: https://www.ganssle.com/articles/toastallessons.htm
This is the first time I've encountered it and rings way too real, even though it was likely written a while ago.