The November 2018 L1 visa Policy Memorandum states any time spent in the US will not count towards meeting the one year employment requirement outside the US.
Immigration news
Under Trump the US E2 visa and E1 visa and other visa categories such as L1 visa, H1B visa, B1 in lieu of H1B, etc have become more difficult to obtain.
In the unlikely event that there will be an UK Unicorn visa this will not be enough to deal with huge problems in the UK visa system and a post Brexit future
There is widespread confusion over minimum Tier 2 Restricted Certificates of Sponsorship CoS points required to be able to apply for a Tier 2 General visa
A number of Google employee are concerned that their company may provide IT services to US Immigration and Customs Enforcement, CBP and other agencies.
New Public charge requirements mean that Green Card applicants are facing even more difficulties obtaining US immigrant visas under Trump