Tomato vines do grow unruly & some artistic gardeners do all sorts of string supports, pruning suckers, & fussing to grow special or large size fruit for county fairs or arboretum clubs... but I just grow tomatoes any ol' way that gives me enough to freeze for winter use. I let my plants grow any way they want w/no pruning.As expected my tomatoes have unleashed their fury and have broken through their supports to do what they want and have begun, in earnest I might add, their sprawl. I just don’t think I have it in me to not let them just do what they want to do.
My 1st year w/ tomatoes a friend & I for fun swapped rare tomato variety seeds to experiment in container pots. We germinated our varieties indoors & transplanted seedlings in pots. One year I had close to 100 containers. We experimented w/ a lot of cherry sizes like Sungold, Coyote, Snowberry, etc, & some cold zone varieties like Azoychka, Purple Russian, Hungarian Heart, & countless other European & Canadian heirlooms but soon realized our favorites were Mediterranean or some nice hybrid varieties for our hot zone.
In pots my tomatoes didn't grow too unruly & were easy to stake but the yields weren't much. But in later years when we put in a couple 4'x 8' raised garden beds surrounded w/ paver stone slabs (to prevent gopher digs) our veggie harvesting had better yields.
c. 2021
At 1st I used round tomato cages as plant supports but found them flimsy.
I finally replaced all round tomato cages w/ sturdier square rubber-coated metal cages & found them sturdier for all climbing veggies.
We kept a few smaller round cages for potted herbs or chili plants & gave away all the tallest round cage supports to a neighbor who had no cages at all.
DH kept one tall round support for his mystery volunteer Sunflower plant which he 1st thought was going to be a cuke plant

Tomato vines untrained/unpruned get heavy and the tall round cage supports collapse causing vine sprawl ~ this is when I got frustrated w/ round tomato cages!
c. 2021
Square cage supports are sturdy & come in all sizes ~ this is an older galvanized metal cage that is old but I still have it... still useful after 10 seasons of use!
After harvest season the fallow garden beds are fun for the hens ~ depositing instant natural fertilizer for the next season.