I was aware of the other allegations of bullying, eg Ireland and Greece, but not heard of the swiss one and FOM.
It's the main Swiss-EU disagreement, so the only thing I can think of when talking about EU 'bullying' them. Bullying is probably a bit strong...but the EU have used some carrot and stick. Such as taking Switzerland out of the EU's Horizon 2020 research fund, costing them billions in academic research funding, and then reinstating them later.
As with us, there's been lots of banging of heads against brick walls for years, as internal Swiss politics has swung back and forth. Way more complicated for me to understand or articulate accurately. But broadly they have similar socialist left, and right wing immigration/freedom of movement concerns, together with centrist pro-EU integration proponents, that you'd recognise anywhere in and around the EU.
Swiss-EU relations are governed by a weird hodgepodge of hundreds of little treaties, rather than the large headline treaties we know as full EU members.
To try and square the circle of different political factions, the Swiss have tried to do various deals with the EU to tweak that raft of treaties, to allow them to set limits, quotas or criteria on FoM and schengen arrangements.
The latest round of arguments was sparked by a 2014 referendum that decided in favour of limiting FoM. However whenever they go to the EU and try to renegotiate based on the mandate given by their internal referendum, the EU always say no, as you might expect. As with the UK, the EU says no “cherry-picking” when it comes to access to the Single Market, insisting on freedom of movement and capital, as with good old Blighty here.
So they argue it out round and round in circles, like us.
The right wing want another referendum next year (cos the Swiss love 'em) on ending FoM with the EU outright. No vague language around limiting it. Just ending it. Although it's not clear how that would actually work in practical terms, in the event of the vote deciding to end it (sound familiar?).