Hey there and welcome to the Samsung UK and EU Community Customer to Customer Forum
Sorry to hear of your issues with swipe text.
I myself use it at lot and for it most part it is better than texting in the usual way but I do get frustrated with it at times.
I've recently cleared the dictionary and cache in GBoard Keyboard and it seems a little better (for now lol)
I am not employed by Samsung nor do I receive any remuneration as a Samsung Members Star.
My device is an S25 Ultra.