70It follows that the review by the Court of the legality of a decision not to initiate the formal investigation procedure on account of the absence of serious difficulties will go beyond simple consideration of whether or not there has been a manifest error of assessment. A decision adopted by the Commission without initiating the formal investigation procedure may be annulled, because of the failure to initiate the inter partes and detailed investigation required under Article 108(2) TFEU, even if it is not established that the Commission’s assessments as to the substance were wrong in law or in fact (see, to that effect, judgment of 15 October 2020, První novinová společnost v Commission, T‑316/18, not published, EU:T:2020:489, paragraphs 88, 90 and 91 and the case-law cited). The review carried out by the Court is therefore not limited (see, to that effect, judgment of 20 June 2019, a&o hostel and hotel Berlin v Commission, T‑578/17, not published, EU:T:2019:437, paragraph 66).