Look at what how GDPR is interpreted in regards to CCTVs and bodycams. You generally do need to give proper Article 13 notice in regards to those recordings. In particular EDPB Guidelines on video recording (3/2019) state that:

> The first layer concerns the primary way in which the controller first engages with the data subject. At this stage, controllers may use a warning sign showing the relevant information. The displayed information may be provided in combination with an icon in order to give, in an easily visible, intelligible and clearly readable manner, a meaningful overview of the intended processing (Article 12 (7) GDPR). The format of the information should be adjusted to the individual location (WP89 par. 22).

> The information should be positioned in such a way that the data subject can easily recognize the circumstances of the surveillance before entering the monitored area (approximately at eye level). It is not necessary to reveal the position of the camera as long as there is no doubt as to which areas are subject to monitoring and the context of surveillance is clarified unambiguously

> The first layer information (warning sign) should generally convey the most important information, e.g. the details of the purposes of processing, the identity of controller and the existence of the rights of the data subject, together with information on the greatest impacts of the processing

While recording by these might not always implicate GDPR directly (as it might be exempted under household exemption or the broader allowances given for journalistic purposes), it does give good idea on how unambiguous it should be.