In odoo 18 in the backend product catalog, you could filter by Attribute Values in the SearchPanel:

                <searchpanel>
                    <field name="categ_id"
                           string="Product Category"
                           icon="fa-th-list"/>
                    <field name="product_template_attribute_value_ids"
                           string="Attributes"
                           icon="fa-th-list"
                           domain="[('ptav_active', '=', True), ('product_tmpl_id.active', '=', True)]"
                           enable_counters="1"
                           select="multi"/>
                </searchpanel>

But in odoo 19 I see that the PTAV was replaced by Tags:

                <searchpanel>
                    <field name="categ_id"
                           string="Categories"
                           icon="fa-th-list"/>
                    <field name="product_tag_ids"
                           string="Tags"
                           icon="fa-th-list"
                           enable_counters="1"
                           select="multi"/>
                </searchpanel>

Is there any reason for this change? I want to still be able to filter by ptav like color etc