Epic is Unreal not Unity, fair to be done with them as well, but for once they aren't part of the problem here. Unfortunately this kinda gives Epic a huge advantage in the industry, as Unity was arguably one of the best competitors to Unreal, but even that gap has been getting wider for a while.
Last year they acquired a malware company (likely for their user tracking infrastructure), and the CEO sold a large part of his shares. They totally knew what would happen and they prepared everything since then.
Although Unity and Epic are not related (other than both being companies that make a game engine), and Epic is not related to these Unity pricing changes, Epic has still done a lot of things "wrong". Especially for gaming on Linux. A lot of games that are currently unplayable under Linux is due to kernel-level (rootkit) anti-cheats. Being the creators of EAC, Epic has actively been harming the compatibility of games on Linux. Developers "can enable Proton support", but even Epic themselves in many of their own titles don't enable this.
They haven't pissed off the larger gaming industry to the point where everybody is moving off their platform/products, but they are still a greedy corporation. Remember the whole exclusives thing on the epic games store?