all keyboards have gotten worse for me. I tried swype when it was new and it was getting better and better until it suddenly tanked. I'm not sure if it was before or after it sold. Then I tried swiftkey and gboard and idk what else but almost every closed and open source keyboard that was free and not obviously malicious.
Gboard was great for a while and I used it for looking up kanji by thumb writing them with typical stroke order and having it deduce usually the correct one while playing ace attorney vs layton back when they said it would never get an english version. It got an english version in the end. The swipe inputs for english and Spanish were excellent but English at least seems to have gotten worse to the point of needing 5+ attempts per word. Also disclaimer: Idon't actually speak spanish. Manual typing is just mentally draining due to recurring typos that get automatically added to suggestions but not a deletable dictionary entry as far as I can tell. I also don't trust google at all.
Almost everything else is equally untrustworthy and/or bad, with at best on par manual typing. The foss options with swipe input literally use closed source google modules and are all equally crappy as google.
I was using a ghetto usb knockoff blackberry keyboard for a while but while it is nearly perfect as far as typing goes, it's also an immensely inconvenient extra accessory that eventually snagged on something and broke.
Basically everything sucks and its still the fault of billionaires like everything else.
I once had the thought of a back of phone mounted backhand stenography input, but I feel like it would also suck.