Truth and Lies
Word by 1992 had trashed Wordperfect, because actually Word was one of the best Programmes MS ever did (Excel was the other). Ironically first done for Apple Mac and Ported for Windows.
So Wordperfect was doomed anyway.
But MS *DID* do dirty tricks with MS Office and Win95. They even created pointless APIs on Win95 so the largely 16 bit Office 95 wouldn't run on Win3.1, Win3.11, WFWG3.11. The Win32s on Win3.11 to allow NT programs didn't allow Office 95 to run. MS had to release NT3.51 for free to NT3.5 32 bit users so they could buy Office 95.
Did MS put stuff in Win95 to stop Win3.x programs running? Not so much. I think virtually all of my Win3.1 SW runs on Win95 including Adobe Première Video Editing and VCD/MPEG1 capture/playback hardware.
Did MS do lots of evil nasty anti-competitive stuff relating to Windows 95? Probably yes.
Did MS do anything to stop Wordperfect running on Win95? Probably not. The last "good" Wordperfect was on DOS and the DOS version of MS Word was starting to look better.
If you were cost conscious on DOS probably the Wordstar Clone "Newstar/Newword" was best as "real" Wordstar had got too bloated. The Cheap simple Wordstar clone also had a brief resurgence on CP/M on the PCW8256, PCW8512 and PCW9512.
In the end Wordperfect failed because they where YEARS too slow in doing a sensible Windows version.
I have Word 2.0a (with Manuals) and it's better than any Wordperfect or Wordstar ever was. I think I have about 10 licenses still, and it's trivial to run on ARM. Vista, XP, Win7, OS X by running Dosbox emulator and loading a copy of Win3.1 (in about 15 seconds on a 10 year old XP machine).
The last version of office for win3.1 was Office 4.3 Office 95 wasn't a huge step forward, nor was it even a real 100% 32 bit Windows program.