The PC equivalent would simply be using Arkenfox with Firefox. If you want a similar out-of-the-box experience without having to tamper with it too much, Librewolf is also pretty good. There aren’t any real downsides to them not being the same, fundamentally they’re pretty similar and it shouldn’t impact one’s workflow across the platforms.
Which repository do you use? The F-Droid official one hasn’t been updated in three months 😬