Depends on what you call long. Right now it is a bottleneck to "everyone" buying an EV, which is what initiated my 1st post on the topic, even a bottleneck to reach 3% US car sales. We cannot assume a massive investment in lithium mining until it happens. These things take time and right now, it is a very significant bottleneck to short, and medium term.
Long term, we may not even use lithium, but it is foreseen to be a long term bottleneck because there is not enough to extract cost effectively using existing tech. It would be fairer to say that you hope it's not a bottleneck but all signs point to it being one. The current sales of EVs are nothing, yet we won't even be mining enough lithium for replacement batteries for those in 15 years, let alone new vehicles.
I'm sure some will be recycled, but it's more likely if batteries remain expensive and then it hurts EV sales so we don't need as much lithium.