Route model binding with a route prefix

Consider the following routes and controllers:

Route::get('companies', [CompanyController::class, 'index'])->name('companies.index');
Route::get('companies/{company}', [CompanyController::class, 'show'])->name('companies.show');

use App\Models\Company;

class CompanyController
{
    public function index()
    {
        return Company::all();
    }

    public function show(Company $company)
    {
        return $company;
    }
}

This is nothing special and works perfectly when accessing mysite.test/companies/1

Now I want to add a country route prefix for each route. So I am wrapping my initial definitions like this:

Route::prefix('{country}')->middleware('country')->group(function () {
    Route::get('companies', [CompanyController::class, 'index'])->name('companies.index');
    Route::get('companies/{company}', [CompanyController::class, 'show'])->name('companies.show');
});

Now when I access mysite.test/de/companies/1 I obviously get an error: "App\Http\Controllers\CompanyController::show(): Argument #1 ($company) must be of type App\Models\Company, string given"

This is easlily solved by changing the method signature to:

public function show(string $country, Company $company)
{
    return $company;
}

In my current project I have hundreds of controller methods using route model binding and I would only need to access the $country variable in very few of them.

Is there a way to omit the $country parameter or to tell Laravel to resolve it differently?

I've tried a few things in my middleware like URL::defaults(['country' => 'some-value']); but this only seems to help with URL generation.