Google Ads brand lists only work with global brands, not local variants.

Google added this to its brand settings help page. If a localized brand stays "under review" or can't be selected, add the main canonical brand name instead.

That way your brand inclusions for Search and your brand exclusions for Search and Performance Max apply to all traffic for that brand.

My tip: if a regional brand name is stuck in review, swap it for the canonical name so your exclusion actually applies.

Via Barry Schwartz.