Every game publisher has errata in their books, and every one eventually fixes them in reprints.
Granted, the only Fria Ligan hard copy I own is Mutant: Year Zero, and that's third printing, but the list of changes since first printing amounts to a few paragraphs of rules clarifications and patches in a 260+ page game. And it's their first and oldest.
The Vaesen Alpha rules have numerous comments on them already, most of which will likely be addressed in the Beta version. Fria Ligan will probably accept comments and corrections on the Beta version for a couple of months before they lock the final version and print it. Will the first printing, including the Special Edition, have errors? I'd be surprised if it didn't. Most of them will be typos and awkward English. (Or Swedish?) A handful might affect the rules. Will they be bad enough that you'd have to toss the whole book? Unlikely. (Fria Ligan 2020 isn't Mongoose Publishing mid 2000s.)
When the errata matter, many of us print them out and keep them with the hard cover book. It'll still be a good looking book with mostly correct text ... and one or two loose (Letter or A5) sheets.
HILDA: This isn't much of a pep talk. Can't you say, 'you can do it!'
ALFUR: Sure! You can do it! (Statement for encouragement purposes only. You may not actually be able to do it.)
-- Hilda ep. 9 (Netflix, 2018)