Sorry to hear that. We cannot reproduce those install errors. Every new release has more and more problems... What other problems have you found?
I had problems after upgrade from 2.2.1 to 2.3.3 ..I've posted bugs on github, but since I cannot give you sql backup (all tables were dropped without notice to me) these bugs were closed. I couldn't display custom pages (they were present in 2.2.1), item count was somehow different (category had 3 items, 2 were counted), countries couldn't be edited, plugins stopped working (couldn't install new ones, couldn't configure old ones)
this time I was unable to install 2.3.4.1 because of those errors, tried it several times, with many variations without luck. The same with 2.3.5 install.. could you provide a clean sql dump, so I can have it "installed" at least that way?
//edit: so I've found something strange, when I set db as localhost, tables are created, but after that, I receive error as described in this thread. BUT if I set db as 127.0.0.1 I can pass though installation. This wasn't problem in 2.2 installation for sure